Scientific Commons: A. Höcker

Reevaluation of the hadronic contribution to the muon magnetic anomaly using new e+e- -> pi+pi- cross section data from BABAR (2009)

Davier, M, Höcker, A, Malaescu, B, Yuan, C Z, Zhang, Z

Using recently published, high-precision pi+pi- cross section data by the BABAR experiment from the analysis of e+e- events with high-energy photon radiation in the initial state, we reevaluate the...

Reevaluation of the hadronic contribution to the muon magnetic anomaly using new $e^{+}e^{-}\to \pi^{+}\pi^{-}$ cross section data from BABAR (2009)

Davier, M, Höcker, A, Malaescu, B, Yuan, C Z, Zhang, Z

Using recently published, high-precision pi+pi- cross section data by the BABAR experiment from the analysis of e+e- events with high-energy photon radiation in the initial state, we reevaluate the...

Search for b → u transitions in B^0 → D^(0)K^(*0) decays (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We present a study of the decays B^0 → D^(0)K^(*0) and B^0 →[overline D]^(0)K^(*0) with K^(*0) → K^(+)π^-. The D^0 and the [overline D]^0 mesons are reconstructed in the final states f =...

The Discrepancy Between Tau and $e^+ e^-$ Spectral Functions Revisited and the Consequences for the Muon Magnetic Anomaly (2009)

Davier, M, Höcker, A, López-Castro, G, Malaescu, B, Mo, X H, Toledo Sanchez, G, ...

We revisit the procedure for comparing the pi pi spectral function measured in tau decays to that obtained in e+e- annihilation. We re-examine the isospin-breaking corrections using new experimental...

The Probable Fate of the Standard Model (2009)

Ellis, J, Espinosa, J R, Giudice, G F, Höcker, A, Riotto, A

Extrapolating the Standard Model to high scales using the renormalisation group, three possibilities arise, depending on the mass of the Higgs boson: if the Higgs mass is large enough the Higgs...

Evidence for X(3872) → Ψ (2S)y in B^± → X(3872)K^± Decays and a Study of B → ccyK (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

In a search for B → ccyK decays with the BABAR detector, where cc includes J/Ψ and Ψ (2S), and K includes K^±, K^0_S , and K^*(892), we find evidence for X(3872) → J/Ψy and X(3872) → Ψ...

Direct CP, Lepton Flavor, and Isospin Asymmetries in the Decays B → K^(*)l^+l^- (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We measure branching fractions and integrated rate asymmetries for the rare decays B→K(*)l^+l^-, where l^+l^- is either e^+e^- or µ^+µ^-, using a sample of 384×10^6 B B events collected with the...

Measurement of time dependent CP asymmetry parameters in B0 meson decays to omegaK_S^0, eta^([prime])K^0, and pi^0K_S^0 (2009)

Aubert , B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We present measurements of the time-dependent CP-violation parameters S and C in the decays B0-->omegaKS0, B0-->eta[prime]K0, reconstructed as eta[prime]KS0 and eta[prime]KL0, and B0-->pi0KS0. The...

Measurement of the B^+ → omegal^+nu and B^+ → etal^+nu branching fractions (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We present a study of the charmless semileptonic B-meson decays B^+ → omega[script-l]^+nu and B^+ → eta[script-l]^+nu. The analysis is based on 3.83×10^8 B[overline B] pairs recorded at the...

Angular distributions in the decay B → K^*l^+l^- (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., ...

We use a sample of 384×106 B[overline B] events collected with the BABAR detector at the PEP-II e+e- collider to study angular distributions in the rare decays B-->K*[script-l]+[script-l]-, where...

Measurements of time-dependent CP asymmetries in B^0 → D^((*)+)D^((*)-) decays (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We present new measurements of time-dependent CP asymmetries for B^0→D(*)+D(*)- decays using (467±5)×10^6 B[overline B] pairs collected with the BABAR detector located at the PEP-II B Factory at...

Measurement of the e^(+)e^(-)→ bb(macron) cross section between √s = 10.54 and 11.20 GeV (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We report e^(+)e^(-)→ bb(macron) cross section measurements by the BABAR experiment performed during an energy scan in the range of 10.54 to 11.20 GeV at the SLAC PEP-II e^(+)e^(-) collider. A...

Branching fractions and CP-violating asymmetries in radiative B decays to ηKγ (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We present measurements of the CP-violation parameters S and C for the radiative decay B^0 → ηK^0_Sγ for B → ηKγ we also measure the branching fractions and for B^+ → ηK^+γ the...

Search for Lepton Flavor Violating Decays tau^- --> l^-Ks^0 with the BABAR Experiment (2009)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

A search for the lepton flavor violating decays τ^- → l^- K^0_S (l = e or µ) has been performed using a data sample corresponding to an integrated luminosity of 469 fb-1, collected with the BABAR...

Measurement of the branching fractions of (B)over-bar -> D**l(-)(v)over-bar(l) decays in events tagged by a fully reconstructed B meson (2008)

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., ...

We report a measurement of the branching fractions of D**- decays based on 417 fb-1 of data collected at the (4S) resonance with the BABAR detector at the PEP-II e+e- storage rings. Events are...

Gfitter - Revisiting the Global Electroweak Fit of the Standard Model and Beyond (2008)

Flaecher, Henning, Goebel, Martin, Haller, Johannes, Höcker, A, Moenig, Klaus, Stelzer, Joerg

The global fit of the Standard Model to electroweak precision data, routinely performed by the LEP electroweak working group and others, demonstrated impressively the predictive power of electroweak...

Gfitter: Revisiting the Global Electroweak Fit of the Standard Model and Beyond (2008)

Flächer, Henning, Goebel, M, Haller, J, Höcker, A, Mönig, K, Stelzer, J

The global fit of the Standard Model to electroweak precision data, routinely performed by the LEP electroweak working group and others, demonstrated impressively the predictive power of electroweak...

The Determination of $\alpha_s$ from Tau Decays Revisited (2008)

Davier, M, Descotes-Genon, S, Höcker, A, Malaescu, B, Zhang, Z

We revisit the determination of alpha_s(m_tau) using a fit to inclusive tau hadronic spectral moments in light of (1) the recent calculation of the fourth-order perturbative coefficient K_4 in the...

The Determination of $\alpha_s$ from Tau Decays Revisited (2008)

Davier, M, Descotes-Genon, S, Höcker, A, Malaescu, B, Zhang, Z

We revisit the determination of alpha_s(m_tau) using a fit to inclusive tau hadronic spectral moments in light of (1) the recent calculation of the fourth-order perturbative coefficient K_4 in the...

Integration of the Trigger and Data Acquisition Systems in ATLAS (2008)

Abolins, M, Adragna, P, Aleksandrov, E, Aleksandrov, I, Amorim, A, Anderson, K, ...

During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have...

Branching Fraction Measurements of Charged B Decays to $K^{*+}K^+K^-, K^{*+}\pi^+K^-, K^{*+}K^+\pi^-$ and $K^{*+}\pi^+\pi^-$ Final States (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Branching fraction and asymmetry measurements of charmless $B^+\to K^{*+}h^+_1h^-_2$ (where $h_{1,2}$ = $K$, $\pi$) decays are presented, using a data sample of 232 million $\Upsilon(4S) \to$ $BB$...

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in $B \to \rhoK^*$ and $B \to f_0(980) K^*$ decays (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report searches for B-meson decays to the charmless final states rho K* and f0(980) K* with a sample of 232 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy...

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in $B \to \rhoK^*$ and $B \to f_0(980) K^*$ decays (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report searches for B-meson decays to the charmless final states rho K* and f0(980) K* with a sample of 232 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy...

Branching Fraction Measurements of Charged B Decays to $K^{*+}K^+K^-, K^{*+}\pi^+K^-, K^{*+}K^+\pi^-$ and $K^{*+}\pi^+\pi^-$ Final States (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Branching fraction and asymmetry measurements of charmless $B^+\to K^{*+}h^+_1h^-_2$ (where $h_{1,2}$ = $K$, $\pi$) decays are presented, using a data sample of 232 million $\Upsilon(4S) \to$ $BB$...

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in $B \to \rhoK^*$ and $B \to f_0(980) K^*$ decays (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report searches for B-meson decays to the charmless final states rho K* and f0(980) K* with a sample of 232 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy...

Branching Fraction Measurements of Charged B Decays to $K^{*+}K^+K^-, K^{*+}\pi^+K^-, K^{*+}K^+\pi^-$ and $K^{*+}\pi^+\pi^-$ Final States (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Branching fraction and asymmetry measurements of charmless $B^+\to K^{*+}h^+_1h^-_2$ (where $h_{1,2}$ = $K$, $\pi$) decays are presented, using a data sample of 232 million $\Upsilon(4S) \to$ $BB$...

Discussion Session, Summer student lecture programme, 9 Aug 2007 (2007)

Höcker, A, Froidevaux, D, Tecker, F A

Discussion Session, Summer student lecture programme, 8 Aug 2007 (2007)

Lourenço, C, Froidevaux, D, Höcker, A

Discussion Session, Summer student lecture programme, 8 Aug 2007 (2007)

Dissertori, G, Lourenço, C, Höcker, A

CP Violation: course (2007)

Höcker, A

TMVA - Toolkit for Multivariate Data Analysis (2007)

Höcker, A, Stelzer, J, Tegenfeldt, F, Voss, H, Voss, K, Christov, A, ...

Multivariate machine learning techniques for the classification of data from high-energy physics (HEP) experiments have become standard tools in most HEP analyses. The multivariate classifiers...

TMVA - Toolkit for Multivariate Data Analysis with ROOT: Users guide (2007)

Höcker, A, Stelzer, J, Tegenfeldt, F, Voss, H, Voss, K, Christov, A, ...

Multivariate machine learning techniques for the classification of data from high-energy physics experiments have become a fundamental ingredient to most analyses. The multivariate classifiers...

Observation of $B^+ \to \Phi \Phi K^+$ and evidence for $B^0 \to \Phi \Phi K^0$ below $\Eta_C$ threshold (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report measurements of the decays B+ -> Phi Phi K+ and B0 -> hi Phi K0 using a sample of 231 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the...

Observation of $B^+ \to \Phi \Phi K^+$ and evidence for $B^0 \to \Phi \Phi K^0$ below $\Eta_C$ threshold (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report measurements of the decays B+ -> Phi Phi K+ and B0 -> hi Phi K0 using a sample of 231 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the...

Observation of $B^+ \to \Phi \Phi K^+$ and evidence for $B^0 \to \Phi \Phi K^0$ below $\Eta_C$ threshold (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report measurements of the decays B+ -> Phi Phi K+ and B0 -> hi Phi K0 using a sample of 231 million BBbar pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the...

ALEPH Tau Spectral Functions and QCD (2007)

Davier, M, Höcker, A, Zhang, Z

Hadronic $\tau$ decays provide a clean laboratory for the precise study of quantum chromodynamics (QCD). Observables based on the spectral functions of hadronic $\tau$ decays can be related to QCD...

Search for B Meson Decays to $\eta' \eta'$ K (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We describe searches for decays of B mesons to the charmless final states eta' eta' K. The data consist of 228 million B Bbar pairs produced in e+ e- annihilation, collected with the BaBar detector...

Observation of $e^+e^-$ Annihilation into the $\boldmath{C=+1}$ Hadronic Final States $\rho^0\rho^0$ and $\phi\rho^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report the first observation of $e^+e^-$ annihilations into states of positive $C$-parity, namely $\rho^0 \rho^0$ and $\phi\rho^0$. The two states are observed in the $\pip\pim\pip\pim$ and...

Search for the decay of a $B^0$ or \bar{B}^0$ meson to $\bar{K}^{*0} K^0 or K^{*0} \bar{K}^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present a search for the decay of a B0 or B0bar meson to a K*0bar K0 or K*0 K0bar final state, using a sample of approximately 232 million BBbar events collected with the BABAR detector at the...

Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of $B^0 \to J/\Psi \Pi^0$ decays (2007)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of the branching fraction and time-dependent CP asymmetries in B0 -> JPsi pi0 decays based on (231.8 +/- 2.6) x 10**6 asymmetries Y(4S) -> BBbar decays collected with the...

Search for B Meson Decays to $\eta' \eta'$ K (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We describe searches for decays of B mesons to the charmless final states eta' eta' K. The data consist of 228 million B Bbar pairs produced in e+ e- annihilation, collected with the BaBar detector...

Observation of $e^+e^-$ Annihilation into the $\boldmath{C=+1}$ Hadronic Final States $\rho^0\rho^0$ and $\phi\rho^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report the first observation of $e^+e^-$ annihilations into states of positive $C$-parity, namely $\rho^0 \rho^0$ and $\phi\rho^0$. The two states are observed in the $\pip\pim\pip\pim$ and...

Search for the decay of a $B^0$ or \bar{B}^0$ meson to $\bar{K}^{*0} K^0 or K^{*0} \bar{K}^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present a search for the decay of a B0 or B0bar meson to a K*0bar K0 or K*0 K0bar final state, using a sample of approximately 232 million BBbar events collected with the BABAR detector at the...

Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of $B^0 \to J/\Psi \Pi^0$ decays (2007)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of the branching fraction and time-dependent CP asymmetries in B0 -> JPsi pi0 decays based on (231.8 +/- 2.6) x 10**6 asymmetries Y(4S) -> BBbar decays collected with the...

Search for B Meson Decays to $\eta' \eta'$ K (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We describe searches for decays of B mesons to the charmless final states eta' eta' K. The data consist of 228 million B Bbar pairs produced in e+ e- annihilation, collected with the BaBar detector...

Observation of $e^+e^-$ Annihilation into the $\boldmath{C=+1}$ Hadronic Final States $\rho^0\rho^0$ and $\phi\rho^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report the first observation of $e^+e^-$ annihilations into states of positive $C$-parity, namely $\rho^0 \rho^0$ and $\phi\rho^0$. The two states are observed in the $\pip\pim\pip\pim$ and...

Search for the decay of a $B^0$ or \bar{B}^0$ meson to $\bar{K}^{*0} K^0 or K^{*0} \bar{K}^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present a search for the decay of a B0 or B0bar meson to a K*0bar K0 or K*0 K0bar final state, using a sample of approximately 232 million BBbar events collected with the BABAR detector at the...

Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of $B^0 \to J/\Psi \Pi^0$ decays (2007)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of the branching fraction and time-dependent CP asymmetries in B0 -> JPsi pi0 decays based on (231.8 +/- 2.6) x 10**6 asymmetries Y(4S) -> BBbar decays collected with the...

Observation of a New $D_s$ Meson Decaying to D K at a Mass of $2.86 GeV/c^2$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We observe a new D_s meson with mass (2856.6 +/- 1.5_{stat.} +/- 5.0_{syst.}) MeV/c^2 and width (48 +/- 7_{stat.} +/- 10_{syst.}) MeV decaying into D^0 K^+ and D^+K^0_S. In the same mass...

Search for $B^+ \to$ X(3872) $K^+$, X(3872) $\to J/\psi \gamma$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

In a study of B+ --> J/psi gamma K+ decays, we find evidence for the radiative decay X(3872) --> J/psi gamma with a statistical significance of 3.4 sigma. We measure the product of branching...

Observation of $B^+ \to K^0\bar{K}^+$ and $B^0 \to K^0 \bar{K}^0$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report observations of the b --> d penguin-dominated decays B+ --> K0bar K+ and B0 --> K0 K0bar in approximately 350 million Upsilon(4S) --> BBbar decays collected with the BaBar detector. We...

Measurement of the Branching Fraction and Time-Dependent CP Asymmetry in the Decay $B^0 \to D^{*+} D^{*-} K^0_s$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We study the decay B0->D*+D*-Ks using (230 +/- 2) x 10^{6} BBbar pairs collected by the Babar detector at the PEP-II B factory. We measure a branching fraction B(B0->D*+D*-Ks)=(4.4\pm0.4\pm0.7)\times...

Precise Branching Ratio Measurements of the Decays $D^0 \to \pi^-\pi^+\pi^0$ and $D^0 \to K^- K^+ \pi^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Using 232 fb-1 of e+e- collision data recorded by the BaBar experiment, we measure the ratios of three-body Cabibbo-suppressed decay rates of the D^0 meson relative to that of the Cabibbo-favored...

Search for $B^+ \to$ X(3872) $K^+$, X(3872) $\to J/\psi \gamma$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

In a study of B+ --> J/psi gamma K+ decays, we find evidence for the radiative decay X(3872) --> J/psi gamma with a statistical significance of 3.4 sigma. We measure the product of branching...

Measurement of the Branching Fraction and Time-Dependent CP Asymmetry in the Decay $B^0 \to D^{*+} D^{*-} K^0_s$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We study the decay B0->D*+D*-Ks using (230 +/- 2) x 10^{6} BBbar pairs collected by the Babar detector at the PEP-II B factory. We measure a branching fraction B(B0->D*+D*-Ks)=(4.4\pm0.4\pm0.7)\times...

Precise Branching Ratio Measurements of the Decays $D^0 \to \pi^-\pi^+\pi^0$ and $D^0 \to K^- K^+ \pi^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Using 232 fb-1 of e+e- collision data recorded by the BaBar experiment, we measure the ratios of three-body Cabibbo-suppressed decay rates of the D^0 meson relative to that of the Cabibbo-favored...

Observation of $B^+ \to K^0\bar{K}^+$ and $B^0 \to K^0 \bar{K}^0$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report observations of the b --> d penguin-dominated decays B+ --> K0bar K+ and B0 --> K0 K0bar in approximately 350 million Upsilon(4S) --> BBbar decays collected with the BaBar detector. We...

Observation of a New $D_s$ Meson Decaying to D K at a Mass of $2.86 GeV/c^2$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We observe a new D_s meson with mass (2856.6 +/- 1.5_{stat.} +/- 5.0_{syst.}) MeV/c^2 and width (48 +/- 7_{stat.} +/- 10_{syst.}) MeV decaying into D^0 K^+ and D^+K^0_S. In the same mass...

Search for $B^+ \to$ X(3872) $K^+$, X(3872) $\to J/\psi \gamma$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

In a study of B+ --> J/psi gamma K+ decays, we find evidence for the radiative decay X(3872) --> J/psi gamma with a statistical significance of 3.4 sigma. We measure the product of branching...

Measurement of the Branching Fraction and Time-Dependent CP Asymmetry in the Decay $B^0 \to D^{*+} D^{*-} K^0_s$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We study the decay B0->D*+D*-Ks using (230 +/- 2) x 10^{6} BBbar pairs collected by the Babar detector at the PEP-II B factory. We measure a branching fraction B(B0->D*+D*-Ks)=(4.4\pm0.4\pm0.7)\times...

Precise Branching Ratio Measurements of the Decays $D^0 \to \pi^-\pi^+\pi^0$ and $D^0 \to K^- K^+ \pi^0$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

Using 232 fb-1 of e+e- collision data recorded by the BaBar experiment, we measure the ratios of three-body Cabibbo-suppressed decay rates of the D^0 meson relative to that of the Cabibbo-favored...

Observation of $B^+ \to K^0\bar{K}^+$ and $B^0 \to K^0 \bar{K}^0$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report observations of the b --> d penguin-dominated decays B+ --> K0bar K+ and B0 --> K0 K0bar in approximately 350 million Upsilon(4S) --> BBbar decays collected with the BaBar detector. We...

Observation of a New $D_s$ Meson Decaying to D K at a Mass of $2.86 GeV/c^2$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We observe a new D_s meson with mass (2856.6 +/- 1.5_{stat.} +/- 5.0_{syst.}) MeV/c^2 and width (48 +/- 7_{stat.} +/- 10_{syst.}) MeV decaying into D^0 K^+ and D^+K^0_S. In the same mass...

A Study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ Mesons in Inclusive $c\bar{c}$ Production Near $\sqrt(s)$ = 10.6 GeV (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

A study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons in inclusive $c\bar{c}$ production is presented using 232~${\rm fb}^{-1}$ of data collected by the BaBar experiment near $\sqrt{s} =...

Measurements of the Decays $B^0 \to \bar{D}^0p\bar{p}$, $B^0 \to \bar{D}^{*0}p\bar{p}$, $B^0 \to D^{-}p\bar{p}\pi^+$, and $B^0 \to D^{*-}p\bar{p}\pi^+$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present measurements of branching fractions of $B^0$ decays to multi-body final states containing protons, based on 232 million $\Upsilon(4S)\to B\bar{B}$ decays collected with the BaBar detector...

Measurement of the $B \to \pi \ell \nu$ Branching Fraction and Determination of $|V_{ub}|$ with Tagged B Mesons (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report a measurement of the B -> pi l nu branching fraction based on 211 fb-1 of data collected with the BABAR detector. We use samples of B0 and B+ mesons tagged by a second B meson reconstructed...

Measurement of the Branching Fraction and Photon Energy Moments of $B \to X_s \gamma$ and $A_{cp}(B \to X_{s+d} \gamma)$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

The photon spectrum in B -> X_s gamma decay, where X_s is any strange hadronic state, is studied using a data sample of 88.5 million e+e- -> Upsilon(4S) -> BBbar decays collected by the BaBar...

Observation of an Excited Charm Baryon $\Omega_C^*$ Decaying to $\Omega_C^0\Gamma$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report the first observation of an excited singly-charm baryon OmegaC* (css) in the radiative decay OmegaC0 Gamma, where the OmegaC0 baryon is reconstructed in the decays to the final states...

Measurements of the Decays $B^0 \to \bar{D}^0p\bar{p}$, $B^0 \to \bar{D}^{*0}p\bar{p}$, $B^0 \to D^{-}p\bar{p}\pi^+$, and $B^0 \to D^{*-}p\bar{p}\pi^+$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present measurements of branching fractions of $B^0$ decays to multi-body final states containing protons, based on 232 million $\Upsilon(4S)\to B\bar{B}$ decays collected with the BaBar detector...

Measurement of the Branching Fraction and Photon Energy Moments of $B \to X_s \gamma$ and $A_{cp}(B \to X_{s+d} \gamma)$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

The photon spectrum in B -> X_s gamma decay, where X_s is any strange hadronic state, is studied using a data sample of 88.5 million e+e- -> Upsilon(4S) -> BBbar decays collected by the BaBar...

Measurement of the $B \to \pi \ell \nu$ Branching Fraction and Determination of $|V_{ub}|$ with Tagged B Mesons (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report a measurement of the B -> pi l nu branching fraction based on 211 fb-1 of data collected with the BABAR detector. We use samples of B0 and B+ mesons tagged by a second B meson reconstructed...

A Study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ Mesons in Inclusive $c\bar{c}$ Production Near $\sqrt(s)$ = 10.6 GeV (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

A study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons in inclusive $c\bar{c}$ production is presented using 232~${\rm fb}^{-1}$ of data collected by the BaBar experiment near $\sqrt{s} =...

Observation of an Excited Charm Baryon $\Omega_C^*$ Decaying to $\Omega_C^0\Gamma$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report the first observation of an excited singly-charm baryon OmegaC* (css) in the radiative decay OmegaC0 Gamma, where the OmegaC0 baryon is reconstructed in the decays to the final states...

Measurements of the Decays $B^0 \to \bar{D}^0p\bar{p}$, $B^0 \to \bar{D}^{*0}p\bar{p}$, $B^0 \to D^{-}p\bar{p}\pi^+$, and $B^0 \to D^{*-}p\bar{p}\pi^+$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We present measurements of branching fractions of $B^0$ decays to multi-body final states containing protons, based on 232 million $\Upsilon(4S)\to B\bar{B}$ decays collected with the BaBar detector...

Measurement of the Branching Fraction and Photon Energy Moments of $B \to X_s \gamma$ and $A_{cp}(B \to X_{s+d} \gamma)$ (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

The photon spectrum in B -> X_s gamma decay, where X_s is any strange hadronic state, is studied using a data sample of 88.5 million e+e- -> Upsilon(4S) -> BBbar decays collected by the BaBar...

Measurement of the $B \to \pi \ell \nu$ Branching Fraction and Determination of $|V_{ub}|$ with Tagged B Mesons (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

We report a measurement of the B -> pi l nu branching fraction based on 211 fb-1 of data collected with the BABAR detector. We use samples of B0 and B+ mesons tagged by a second B meson reconstructed...

A Study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ Mesons in Inclusive $c\bar{c}$ Production Near $\sqrt(s)$ = 10.6 GeV (2007)

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., ...

A study of the $D_{sJ}^*(2317)^+$ and $D_{sJ}(2460)^+$ mesons in inclusive $c\bar{c}$ production is presented using 232~${\rm fb}^{-1}$ of data collected by the BaBar experiment near $\sqrt{s} =...

Observation of an Excited Charm Baryon $\Omega_C^*$ Decaying to $\Omega_C^0\Gamma$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We report the first observation of an excited singly-charm baryon OmegaC* (css) in the radiative decay OmegaC0 Gamma, where the OmegaC0 baryon is reconstructed in the decays to the final states...

Measurement of branching fractions and charge asymmetries in B decays to an $\eta$ meson and a $K*$ meson (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of branching fractions and charge asymmetries for the decays etaK*, where K* indicates a spin 0, 1, or 2 Kpi system. The data sample corresponds to 344x10^6 BBbar pairs...

Measurement of branching fractions and charge asymmetries in B decays to an $\eta$ meson and a $K*$ meson (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of branching fractions and charge asymmetries for the decays etaK*, where K* indicates a spin 0, 1, or 2 Kpi system. The data sample corresponds to 344x10^6 BBbar pairs...

Measurement of branching fractions and charge asymmetries in B decays to an $\eta$ meson and a $K*$ meson (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We present measurements of branching fractions and charge asymmetries for the decays etaK*, where K* indicates a spin 0, 1, or 2 Kpi system. The data sample corresponds to 344x10^6 BBbar pairs...

Searches for $B^0$ decays to $\eta K^0, \eta \eta, \eta' \eta', \eta \phi and \eta' \phi$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We search for B0 meson decays into two-body combinations of K0, eta, eta', and phi mesons in 324 million B Bbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider...

Searches for $B^0$ decays to $\eta K^0, \eta \eta, \eta' \eta', \eta \phi and \eta' \phi$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We search for B0 meson decays into two-body combinations of K0, eta, eta', and phi mesons in 324 million B Bbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider...

Searches for $B^0$ decays to $\eta K^0, \eta \eta, \eta' \eta', \eta \phi and \eta' \phi$ (2007)

Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., ...

We search for B0 meson decays into two-body combinations of K0, eta, eta', and phi mesons in 324 million B Bbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider...

Towards the European strategy for particle physics: the Briefing Book (2006)

Åkesson, T, Aleksan, R, Allanach, Benjamin C, Bertolucci, S, Blondel, A, Butterworth, J, ...

This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics...

Bayesian Statistics at Work: the Troublesome Extraction of the CKM Phase alpha (2006)

Charles, J, Höcker, A, Lacker, H, Le Diberder, F R, T'Jampens, S

In Bayesian statistics, one's prior beliefs about underlying model parameters are revised with the information content of observed data from which, using Bayes' rule, a posterior belief is obtained....

Bayesian Statistics at Work: the Troublesome Extraction of the CKM Phase alpha (2006)

Charles, J, Höcker, A, Lacker, L, Le Diberder, F R, T'Jampens, S

In Bayesian statistics, one's prior beliefs about underlying model parameters are revised with the information content of observed data from which, using Bayes' rule, a posterior belief is obtained....

Branching Fraction Measurements of $B \to \eta_c K$ Decays (2006)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We study the decays B+ -> etac K+ and B0 -> etac K0, where the etac is reconstructed in the Ks K+ pi- and K+ K- pi0 decay modes. Results are based on a sample of 86 million BBbar pairs collected with...

Branching Fraction Measurements of $B \to \eta_c K$ Decays (2006)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We study the decays B+ -> etac K+ and B0 -> etac K0, where the etac is reconstructed in the Ks K+ pi- and K+ K- pi0 decay modes. Results are based on a sample of 86 million BBbar pairs collected with...

Branching Fraction Measurements of $B \to \eta_c K$ Decays (2006)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We study the decays B+ -> etac K+ and B0 -> etac K0, where the etac is reconstructed in the Ks K+ pi- and K+ K- pi0 decay modes. Results are based on a sample of 86 million BBbar pairs collected with...

Discussion Session, 09 Aug 2006 (2006)

Lourenço, C, Froidevaux, D, Höcker, A

Discussion Session, 10 Aug 2006 (2006)

Höcker, A, Weinstein, A, Delahaye, Jean Pierre

CP Violation: course (2006)

Höcker, A

The lecture introduces the concepts and phenomena of matter-antimatter symmetry violation, so-called "CP" violation. The lecture is organized in four courses, the first being devoted to a historical...

CP violation and the CKM matrix (2006)

Höcker, A, Ligeti, Z

Our knowledge of quark-flavor physics and CP violation increased tremendously over the past five years. The Standard Model has been confirmed to correctly describe the dominant part of the observed...

Testing on a Large Scale (2006)

Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Albuquerque-Portes, M, Alexandrov, L, Amorim, A, ...

The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...

Testing on a Large Scale: Running the ATLAS Data Acquisition and High Level Trigger Software on 700 PC Nodes (2006)

Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Alexandrov, L, Amorim, A, Armstrong, S, ...

The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...

A configuration system for the ATLAS trigger (2006)

Dos Anjos, A, Ellis, Nick, Haller, J, Höcker, A, Kohno, T, Landon, M, ...

The ATLAS detector at CERN's Large Hadron Collider will be exposed to proton-proton collisions from beams crossing at 40 MHz that have to be reduced to the few 100 Hz allowed by the storage systems....

Testing the dynamics of $\Beta\rightarrow\pi\pi$ and constraints on $\alpha$ (2006)

Grossman, Y., Höcker, A., Ligeti, Z., Pirjol, D.

In charmless nonleptonic $B$ decays to $\pi\pi$ or $\rho\rho$, the "color allowed" and "color suppressed" tree amplitudes can be studied in a systematic expansion in $\alpha_s$(mb) and $\Lambda$/mb....

Testing the dynamics of $\Beta\rightarrow\pi\pi$ and constraints on $\alpha$ (2006)

Grossman, Y., Höcker, A., Ligeti, Z., Pirjol, D.

In charmless nonleptonic $B$ decays to $\pi\pi$ or $\rho\rho$, the "color allowed" and "color suppressed" tree amplitudes can be studied in a systematic expansion in $\alpha_s$(mb) and $\Lambda$/mb....

Testing the dynamics of $\Beta\rightarrow\pi\pi$ and constraints on $\alpha$ (2006)

Grossman, Y., Höcker, A., Ligeti, Z., Pirjol, D.

In charmless nonleptonic $B$ decays to $\pi\pi$ or $\rho\rho$, the "color allowed" and "color suppressed" tree amplitudes can be studied in a systematic expansion in $\alpha_s$(mb) and $\Lambda$/mb....

Branching Ratios and Spectral Functions of $\tau$ Decays: final ALEPH measurements and physics implications (2005)

Schael, S, Barate, R, Brunelière, R, De Bonis, I, Décamp, D, Goy, C, ...

The full LEP-1 data set collected with the ALEPH detector at the $Z$ pole during 1991-1995 is analysed in order to measure the $\tau$ decay branching fractions. The analysis follows the global method...

CP Violation (2005)

Höcker, A

Discussion Session, 5 Aug 2005 (2005)

Höcker, A, Jakobs, K

Discussion Session, 8 Aug 2005 (2005)

Höcker, A, Gómez-Cadenas, Juan José

Discussion Session, 9 Aug 2005 (2005)

Höcker, A, Gómez-Cadenas, Juan José, Grey, F

Measurement of the Time-Dependent CP Asymmetry in the $B^0 \to \Phi K^0$ Decay (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B0 --> Phi K0. We use a sample of approximately 114 million B-meson pairs taken at the Upsilon(4S) resonance...

Observation of the Decay $ B \Rightarrow J/\psi \eta K$ and Search for $X(3872) \Rightarrow J/\psi \eta$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report the observation of the $B$ meson decay $B^\pm\to J/\psi \eta K^\pm$ and evidence for the decay $B^0\to J/\psi \eta K^0_S$, using {90} million $BBbar$ events collected at the...

Measurement of the Direct CP Asymmetry in $b \to s \gamma$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We describe a measurement of the direct CP asymmetry between inclusive b -> s gamma and bbar -> sbar gamma decays. This asymmetry is expected to be less than 0.01 in the Standard Model, but could be...

Limits on the Decay-Rate Difference of Neutral-B Mesons and on CP, T, and CPT Violation in B0-antiB0 Oscillations (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

Using events in which one of two neutral-B mesons from the decay of an Y(4S) resonance is fully reconstructed, we set limits on the difference between the decay rates of the two neutral-B mass...

B Meson Decays to $\eta' K*, \eta' \rho, \eta' \pi^0, \omega \pi^0, and \phi \pi^0$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to eta(')K*, eta(')rho, eta(')pi0, omegapi0, and phipi0. The data were recorded with...

Measurement of the Electron Energy Spectrum and its Moments in Inclusive $B\to Xe\nu$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the inclusive electron energy spectrum for semileptonic decays of B mesons in a data sample of 52 million Y4S -> BBar decays collected with the BABAR detector at the PEP-II...

Measurements of Moments of the Hadronic Mass Distribution in Semileptonic B Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the first four moments of the hadronic mass distribution in B --> X_c lv decays. The measurements are based on 89 million Upsilon(4S) --> BBbar events where the hadronic...

Search for the Decay $B^0 \to p\overline{p}$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present the result of a search for the charmless two-body baryonic decay B^0 -> ppbar in a sample of 88 million Y(4S) -> BBbar decays collected by the BaBar detector at the SLAC PEP-II...

Measurement of the Time-Dependent CP Asymmetry in the $B^0 \to \Phi K^0$ Decay (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B0 --> Phi K0. We use a sample of approximately 114 million B-meson pairs taken at the Upsilon(4S) resonance...

Observation of the Decay $ B \Rightarrow J/\psi \eta K$ and Search for $X(3872) \Rightarrow J/\psi \eta$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report the observation of the $B$ meson decay $B^\pm\to J/\psi \eta K^\pm$ and evidence for the decay $B^0\to J/\psi \eta K^0_S$, using {90} million $BBbar$ events collected at the...

Measurement of the Direct CP Asymmetry in $b \to s \gamma$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We describe a measurement of the direct CP asymmetry between inclusive b -> s gamma and bbar -> sbar gamma decays. This asymmetry is expected to be less than 0.01 in the Standard Model, but could be...

Limits on the Decay-Rate Difference of Neutral-B Mesons and on CP, T, and CPT Violation in B0-antiB0 Oscillations (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

Using events in which one of two neutral-B mesons from the decay of an Y(4S) resonance is fully reconstructed, we set limits on the difference between the decay rates of the two neutral-B mass...

B Meson Decays to $\eta' K*, \eta' \rho, \eta' \pi^0, \omega \pi^0, and \phi \pi^0$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to eta(')K*, eta(')rho, eta(')pi0, omegapi0, and phipi0. The data were recorded with...

Search for the Decay $B^0 \to p\overline{p}$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present the result of a search for the charmless two-body baryonic decay B^0 -> ppbar in a sample of 88 million Y(4S) -> BBbar decays collected by the BaBar detector at the SLAC PEP-II...

Measurements of Moments of the Hadronic Mass Distribution in Semileptonic B Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the first four moments of the hadronic mass distribution in B --> X_c lv decays. The measurements are based on 89 million Upsilon(4S) --> BBbar events where the hadronic...

Measurement of the Electron Energy Spectrum and its Moments in Inclusive $B\to Xe\nu$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the inclusive electron energy spectrum for semileptonic decays of B mesons in a data sample of 52 million Y4S -> BBar decays collected with the BABAR detector at the PEP-II...

Measurement of the Time-Dependent CP Asymmetry in the $B^0 \to \Phi K^0$ Decay (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B0 --> Phi K0. We use a sample of approximately 114 million B-meson pairs taken at the Upsilon(4S) resonance...

Observation of the Decay $ B \Rightarrow J/\psi \eta K$ and Search for $X(3872) \Rightarrow J/\psi \eta$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report the observation of the $B$ meson decay $B^\pm\to J/\psi \eta K^\pm$ and evidence for the decay $B^0\to J/\psi \eta K^0_S$, using {90} million $BBbar$ events collected at the...

Measurement of the Direct CP Asymmetry in $b \to s \gamma$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We describe a measurement of the direct CP asymmetry between inclusive b -> s gamma and bbar -> sbar gamma decays. This asymmetry is expected to be less than 0.01 in the Standard Model, but could be...

Limits on the Decay-Rate Difference of Neutral-B Mesons and on CP, T, and CPT Violation in B0-antiB0 Oscillations (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

Using events in which one of two neutral-B mesons from the decay of an Y(4S) resonance is fully reconstructed, we set limits on the difference between the decay rates of the two neutral-B mass...

B Meson Decays to $\eta' K*, \eta' \rho, \eta' \pi^0, \omega \pi^0, and \phi \pi^0$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to eta(')K*, eta(')rho, eta(')pi0, omegapi0, and phipi0. The data were recorded with...

Search for the Decay $B^0 \to p\overline{p}$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present the result of a search for the charmless two-body baryonic decay B^0 -> ppbar in a sample of 88 million Y(4S) -> BBbar decays collected by the BaBar detector at the SLAC PEP-II...

Measurements of Moments of the Hadronic Mass Distribution in Semileptonic B Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the first four moments of the hadronic mass distribution in B --> X_c lv decays. The measurements are based on 89 million Upsilon(4S) --> BBbar events where the hadronic...

Measurement of the Electron Energy Spectrum and its Moments in Inclusive $B\to Xe\nu$ Decays (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We report a measurement of the inclusive electron energy spectrum for semileptonic decays of B mesons in a data sample of 52 million Y4S -> BBar decays collected with the BABAR detector at the PEP-II...

Study of high momentum $\eta'$ production in $B \to \{eta'} X_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We measure the branching fraction for the charmless semi-inclusive process B -> eta' X_s, where the eta' meson has a momentum in the range 2.0 to 2.7 GeV/c in the Upsilon(4S) center-of-mass frame and...

Study of high momentum $\eta'$ production in $B \to \{eta'} X_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We measure the branching fraction for the charmless semi-inclusive process B -> eta' X_s, where the eta' meson has a momentum in the range 2.0 to 2.7 GeV/c in the Upsilon(4S) center-of-mass frame and...

Study of high momentum $\eta'$ production in $B \to \{eta'} X_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We measure the branching fraction for the charmless semi-inclusive process B -> eta' X_s, where the eta' meson has a momentum in the range 2.0 to 2.7 GeV/c in the Upsilon(4S) center-of-mass frame and...

Measurements of the Branching Fraction and CP-Violation Asymmetries in $B^0 \to f_{0}(980)K^0_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fraction and CP-violating asymmetries in the decay $B^0 \to f_0(980)K^0_S$. The results are obtained from a data sample of $123\times10^6$ $\Upsilon(4S) \to...

Measurements of the Branching Fraction and CP-Violation Asymmetries in $B^0 \to f_{0}(980)K^0_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fraction and CP-violating asymmetries in the decay $B^0 \to f_0(980)K^0_S$. The results are obtained from a data sample of $123\times10^6$ $\Upsilon(4S) \to...

Measurements of the Branching Fraction and CP-Violation Asymmetries in $B^0 \to f_{0}(980)K^0_s$ (2005)

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.M., Hicheur, A., ...

We present measurements of the branching fraction and CP-violating asymmetries in the decay $B^0 \to f_0(980)K^0_S$. The results are obtained from a data sample of $123\times10^6$ $\Upsilon(4S) \to...

Zoom sur la violation de CP à l'occasion des résultats obtenus par les expériences BABAR et BELLE (2005)

Arnaud, N., Höcker, A.

En août dernier, les expériences BABAR et Belle ont annoncé presque simultanément la découverte d'une « différence spectaculaire entre matière et antimatière ». Cette information a été...

Zoom sur la violation de CP à l'occasion des résultats obtenus par les expériences BABAR et BELLE (2005)

Arnaud, N., Höcker, A.

En août dernier, les expériences BABAR et Belle ont annoncé presque simultanément la découverte d'une « différence spectaculaire entre matière et antimatière ». Cette information a été...

Zoom sur la violation de CP à l'occasion des résultats obtenus par les expériences BABAR et BELLE (2005)

Arnaud, N., Höcker, A.

En août dernier, les expériences BABAR et Belle ont annoncé presque simultanément la découverte d'une « différence spectaculaire entre matière et antimatière ». Cette information a été...

CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories (2004)

Charles, J, Höcker, A, Lacker, H M, Laplace, S, Le Diberder, F R, Malclès, J, ...

and Kpi data with the other constraints in the unitarity plane when the hadronic matrix elements are calculated within QCD Factorization, where we apply a conservative treatment of the theoretical...

CKM Matrix: Status and New Developments (2001)

Höcker, A., Lacker, H., Laplace, S., Diberder, F. Le

An analysis of the CKM matrix parameters within the {\it R}fit approach is presented using updated input values with special emphasis on the recent $\sin{2\beta}$ measurements from BABAR and Belle....

Mesure Des Fonctions Spectrales Du Lepton Tau Et Applications A La Chromodynamique Quantique (2000)

Höcker, A

DIRC: a particle identification system for BaBar (2000)

Höcker, A

Mesure des fonctions spectrales du lepton $\tau$ et applications à la chromodynamique quantique (1999)

Höcker, A

The Status of MSSM Higgs Boson Searches at LEP (1999)

Höcker, A

The most recently available results from searches conducted by the four LEP experiments at 189 GeV center-of-mass energy for Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) are...

Study of $\tau$ decays involving kaons, spectral functions and determination of the strange quark mass (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K^0_S and K^0_L detection. The decay dynamics are studied,...

One-prong $\tau$ decays with kaons (1999)

Barate, R, Décamp, D, Ghez, P, Goy, C, Lees, J P, Merle, E, ...

One-prong $\tau$ decays into final states involving kaons are studied with about 161k $\tau^+\tau^-$ events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx...

Determination of $m_{s}$ from strange $\tau$ decays (1999)

Chen, S, Davier, M, Höcker, A

Results of the recent comprehensive ALEPH measurement of tau decays involving kaons, yielding the total strange width R/sub tau , s/ and the strange spectral function, are used in a combination of...

Searches for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at centre-of-mass energies of 181-184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb-1, are analysed to search for pair-produced neutral Higgs...

Search for the Standard Model Higgs boson at the LEP2 collider near $\sqrt{s}$ = 183 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

During 1997 the ALEPH experiment at LEP gathered $57 \pb$ of data at centre-of-mass energies near $183 ~\G$. These data are used to look for possible signals from the production of the Standard Model...

Study of $D^{0}-\overline{D}^{0}$ mixing and $D^{0}$ doubly-Cabibbo-suppressed decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D^{*+} --> D^0 pi_{s}^+, with D^0 decaying to K^- pi^+ or to K^+ pi^-, are studied. The relative br...

Search for $B^{0}_{s}$ oscillations using inclusive lepton events (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for Bs oscillations is performed using a sample of semileptonic b-hadron decays collected by the ALEPH experiment during 1991-1995. Compared to previous inclusive lepton analyses, the prop...

The forward-backward asymmetry for charm quarks at the Z (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

From this analysis, a value of the effective electroweak mixing angle $\sin^2 \theta^{\mathrm eff}_W = 0.2321 \pm 0.0016$ is extracted.

A measurement of the gluon splitting rate into $b\overline{b}$ pairs in hadronic Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the fraction of hadronic Z decays in which a gluon splits into a $b \bar{b}$ pair, \gbb, is presented using data collected by {\t extsc ALEPH} from 1992 to 1995 at the Z resonance....

Scalar quark searches in $e^+ e^-$ collisions at $\sqrt{s}$ = 181-184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57~$\mathrm{pb}^{-1}$ taken at...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies up to 184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The data collected by the ALEPH experiment at LEP at centre-of-mass energies around 183 GeV are analysed to search for sleptons, the partners of leptons in supersymmetric theories. The previously pu...

Determination of $|V_{ub}|$ from the measurement of the inclusive charmless semileptonic branching ratio of b hadrons (1998)

Barate, R, Abbaneo, D, Affholderbach, K, Ajaltouni, Ziad J, Alemany, R, Aleppo, M, ...

From a study of the kinematic properties of the final state produced in the semileptonic decays b-->X l nu, the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sam...

Single- and multi-photon production in $e^{+}e^{-}$ collisions at a centre-of-mass energy of 183 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, ...

The production of final states involving one or more energetic photons from e+e- collisions is studied in a sample of 58.5 pb-1 of data recorded at a centre-of-mass energy of 183 GeV by the ALEPH...

Measurement of the fraction of hadronic Z decays into charm quark pairs (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the inclusive $b \rightarrow s \gamma$ branching ratio (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The flavour changing neutral current decay b -> s gamma has been detected in hadronic Z decays collected by ALEPH at LEP. The signal is isolated in lifetime-tagged b-bbar events by the presence of a...

Determination of $A^{b}_{FB}$ using Jet Charge Measurements in Z Decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An improved measurement of the forward-backward asymmetry in Z-> b b-bar decays is presented, based on a sample of 4.1 million hadronic Z decays collected by Aleph between 1991 and 1995. Data are a...

Observation of doubly-charmed B decays at LEP (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for doubly-charmed B decays with both charmed mesons reconstructed is performed, using about 3.8 million hadronic Z decays recorded with the ALEPH detector at LEP. A clear signal is observed...

Search for evidence of compositeness at LEP I (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Extensive searches for evidence of compositeness of quarks and leptons have been made using the full set of ALEPH data from LEP running at the Z peak. They include searches for radiative and weak...

Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a...

Measurement of triple gauge-boson couplings at 172 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during...

$K^{0}_{S}$ production in $\tau$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are...

Measurements of the structure of quark and gluon jets in hadronic Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An experimental investigation of the structure of identified quark and gluon jets is presented. Observables related to both the global and internal structure of jets are measured; this allows for...

Resonant structure and flavour tagging in the $B\pi^{\pm}$ system using fully reconstructed $B$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Starting from a sample of four million hadronic $Z$ decays collected with the ALEPH detector at LEP, 404 charged and neutral $B$ mesons are fully reconstructed and used to look for resonant structure...

Measurement of the spectral functions of axial-vector hadronic $\tau$ decays and determination of $\alpha_{s}(M^2_\tau)$ (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

An analysis based on 124000 selected tau pairs recorded by the ALEPH detector at LEP provides the vector (V) and axial-vector (A) spectral functions of hadronic tau decays together with their total...

Study of $B^0_s$ oscillations and lifetime using fully reconstructed $D^-_s$ decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for B0s oscillations is performed using approximately 4 million Z --> qqbar events collected by the ALEPH experiment during 1991-1995. B0s candidates are partially reconstructed by combining...

Four-jet final state production in $e^+ e^-$ collisions at centre-of-mass energies ranging from 130 to 184 GeV (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The four jet topology is analysed in the ALEPH data taken between November 1995 and November 1997, at centre-of-mass energies ranging from 130 to 184 GeV. While an unexpected accumulation of events...

A measurement of the semileptonic branching ratio BR(b-baryon $\rightarrow p l\overline{\nu}X$) and a study of inclusive $\pi^{\pm}$, $K^{\pm}$, ($p,\overline{p}$) production in Z decays (1998)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Inclusive pi^+/-, K^+/- (p,pbar) production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in Z...

Search for supersymmetry with a dominant R-parity violating $LL\overline{E}$ coupling in $e^+ e^-$ collisions at centre-of-mass energies of 130 GeV to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LLE coupling has been performed using the data collected by ALEPH at...

An upper limit on the $\tau$ neutrino mass from three- and five-prong tau decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A bound on the tau neutrino mass is established using the data collected from 1991 to 1995 at Ecm = M(Z) with the ALEPH detector. Two separate limits are derived by fitting the distribution of...

Searches for charginos and neutralinos in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although...

Search for charged Higgs bosons in $e^+ e^-$ collisions at centre-of-mass energies from 130 to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb-1, are analysed in a search for pair-produced charged...

Searches for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$ = 161 GeV and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 \pb\ at...

Measurement of the b baryon lifetime and branching fractions in Z decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using approximately 4 million hadronic Z decays recorded with the Aleph detector from 1991 through 1995, the lifetime of the b baryon is measured with three independent methods. From the impact...

Updated measurement of the $\tau$ lepton lifetime (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector...

Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross...

Searches for scalar top and scalar bottom quarks at LEP2 (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7...

Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data...

Three-prong $\tau$ decays with charged kaons (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Final states with charged kaons in three-prong $\tau$ decays are studied by exploiting the particle identification from the dE/dx measurement. The results are based on a sample of about $1.6\times...

Search for the standard model Higgs boson in $e^+ e^-$ collisions at $\sqrt{s}$=161, 170 and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The reaction e+e- -> HZ is used to search for the Standard Model Higgs boson. The data sample consists of integrated luminosities of 10.9pb-1 1.1pb-1 and 9.5pb-1 collected by the ALEPH experiment at...

Search for sleptons in $e^+ e^-$ collisions at centre-of-mass energies of 161 GeV and 172 GeV (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The data recorded by the ALEPH experiment at LEP at centre-of-mass energies of 161 GeV and 172 GeV were analysed to search for sleptons, the supersymmetric partners of leptons. No evidence for the...

Measurement of the transverse spin correlations in the decay $Z \rightarrow \tau^+\tau^-$ (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

For tau leptons produced in e^+e^- -> tau^+ tau^- interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the...

Search for pair-production of long-lived heavy charged particles in $e^+ e^-$ annihilation (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at \sqrt{s} = 161,...

Search for the $B_{c}$ meson in hadronic Z decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for the Bc meson decaying into the channels J/psi pi+ and J/psi l nu (l = e or mu) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search...

Measurement of the branching fraction for $D^{0} \rightarrow K^{-}\pi^{+}$ (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The branching fraction for D0 -> K- pi+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed D*+ -> D0...

Measurement of the W mass in $e^{+}e^{-}$ collisions at production threshold (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In June 1996, the LEP centre-of-mass energy was raised to 161 GeV. Pair production of W bosons in e+e- collisions was observed for the first time by the LEP experiments. An integrated luminosity of...

A Measurement of $R_b$ using a Lifetime-Mass Tag (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

ALEPH's published measurement of $R_b$ using a lifetime tag, is updated using the full LEP~1 data sample. Considerable effort has been devoted to understanding systematic effects. Charm background is...

A Measurement of $R_b$ using Mutually Exclusive Tags (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of $R_b$ using five mutually exclusive hemisphere tags has been pe rformed by ALEPH using the full LEP1 statistics. Three tags are designed to sele ct the decay of the $Z^0$ to $b$...

Measurement of the spectral functions of vector current hadronic $\tau$ decays (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the spectral functions of non-strange tau vector current final states is presented, using 124,358 tau pairs recorded by the ALEPH detector at LEP during the years 1991 to 1994. The...

Measurement of the $\tau$ Lepton Lifetime with the Three-dimensional Impact Parameter Method (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A new method is presented for the measurement of the mean $\tau$ lepton lifetime using events in which $\tau$'s are pair-produced and both $\tau$'s decay to hadrons and $\nu_\tau$. Based on the...

Study of the muon-pair production at centre-of-mass energies from 20 to 136 GeV with the ALEPH detector (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The total cross section and the forward-backward asymmetry for the process $e^+ e^- \rightarrow \mu^+ \mu^- (n \gamma)$ are measured in the energy range 20-136 GeV by reconstructing the effective...

A measurement of the QCD colour factors and a limit on the light gluino (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using data collected from 1992 to 1995 with the ALEPH detector at LEP, a measurement of the colour factor ratios CA/CF and TF/CF and the strong coupling constant $\overline{\alpha}_s = CF...

The topology dependence of charged particle multiplicities in three-jet events (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A study of individual jet and whole-event charged particle multiplicities in three-jet events measured in e+e- annihilation at the Z reveals a significant topology dependence. Mean jet multiplicities...

Studies of quantum chromodynamics with the ALEPH detector (1997)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Previously published and as yet unpublished QCD results obtained with the ALEPH detector at LEP1 are presented. The unprecedented statistics allows detailed studies of both perturbative and...

Inclusive Production of Neutral Pions in Hadronic Z Decays (1996)

Barate, R, Buskulic, Damir, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A measurement of the inclusive production of pi0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic...

Measurement of $|V_{cb}|$, form factors and branching fractions in the decays $\overline{B}^0 \to D^{*+}l^- \overline{\nu}_l$ and $\overline{B}^0 \to D^{+}l^{-}\overline{\nu}_l$ (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Two samples of exclusive semileptonic decays, 579 B0->D*+l-nu events and 261 B0->D+l-nu events, are selected from approximately 3.9 million hadronic Z decays collected by the ALEPH detector at LEP....

Charm counting in b decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The inclusive production of charmed particles in Z -> bb decays has been measured from the yield of D^0, D^+, D^+_s and Lambda_{c}^+ decays in a sample of qq events with high b purity collected with...

Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge...

A study of tau decays involving eta and omega mesons (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The 132 pb$^{-1}$ of data collected by ALEPH from 1991 to 1994 have been used to analyze $\eta$ and $\omega$ production in $\tau$ decays. The following branching fractions have been measured:...

Observation of charmless hadronic B decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Four candidates for charmless hadronic B decay are observed in a data sample of four million hadronic Z decays recorded by the {\sc aleph} detector at {\sc lep} . The probability that these events...

Production of orbitally excited charm mesons in semileptonic B decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Transverse Momentum Correlations in Hadronic Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Using data obtained with the ALEPH detector at the Z resonance, a measure based on transverse momentum is shown to exhibit a correlation between the two halves of a hadronic event which cannot be...

Search for Excited Leptons at 130 - 140 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for the radiative decay of excited charged leptons, $\ls$, and for radiative and weak decays of excited electron neutrinos, $\nu_e^*$, is performed, using the 5.8~$\ipb$ of data collected by...

Four fermion production in $e^+ e^-$ collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Four-fermion events have been selected in a data sample of 5.8 pb**-1 collected with the ALEPH detector at centre-of-mass energies of 130 and 136 GeV. The final states l^+l^- qqbar, l^+l^-l^+l^-,...

Search for charginos and neutralinos with R-parity violation at $\sqrt{s}$ = 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Searches for charginos and neutralinos produced in e+e- collisions at centre-of-mass energies of 130 and 136 GeV have been performed under the assumptions that R-parity is not conserved, that the...

Mass limit for the lightest neutralino (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Indirect limits on the mass of the lightest neutralino are derived from the results of searches for charginos, neutralinos, and sleptons performed with data taken by the ALEPH Collaboration at...

Strange b baryon production and lifetime in Z decays (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Xi_b is performed with a study of Xi-lepton...

Search for heavy lepton pair production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

A search for pair production of new heavy leptons has been performed assuming different scenarios for the mixing of the new particles with Standard Model leptons. No candidate events were found in a...

Mass Limit for the standard model Higgs boson with the full LEP I ALEPH data sample (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

background from the electroweak process e+e- --> l+ l- q qbar. This search results in a 95% C.L. lower limit on the Higgs boson mass of $63.9$~\Gcs. The reaction e+e- --> HZ* is used to search for...

Search for CP violation in the decay Z --> b$\overline{b}$g (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

About three million hadronic decays of the Z collected by ALEPH in the years 1991 to 1994 are used to search for anomalous CP violation beyond the Standard Model in the decay Z -> bbg. The study is...

A study of single and multi-photon production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The production of final states involving one or more energetic photons from e+e- collisions at high energies is studied using data collected by the ALEPH detector at LEP. The data consist of two...

Four-jet final state production in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

The four-jet final state is analyzed to search for hadronic decays of pair-produced heavy particles. The analysis uses the ALEPH data collected at LEP in November 1995 at centre-of-mass energies of...

Studies of QCD in $e^{+}e^{-}\to$ hadrons at E$_{cm}$ = 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Studies of QCD in $\mbox{e}^+\mbox{e}^- \rightarrow$ Hadrons at $E_{cm} = $} 130 and 136 GeV The ALEPH Collaboration An analysis of the properties of hadronic final states produced in...

Measurement of hadron and lepton-pair production from e+e- annihilation at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Hadronic and leptonic cross-sections and forward-backward asymmetries are measured using 5.7~pb$^{-1}$ of data taken with the ALEPH detector at LEP at $\cms$ energies of 130 and 136~GeV. The results...

Search for supersymmetric particles in e+e- collisions at centre-of-mass energies of 130 and 136 GeV (1996)

Buskulic, Damir, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, ...

Search for supersymmetric particles in e+e- collisions at centre-of-mass energies of 130 and 136 GeV. Searches for supersymmetric particles produced in e+e- collisions at centre-of-mass energies of...

A Measurement of the Production of $D*^{\pm}$ Mesons on the $Z^{0}$ Resonance (1995)

Akers, R J, Alexander, Gideon, Allison, J, Ametewee, K A, Anderson, K J, Arcelli, S, ...

Observations of $\pi$-B charge-flavor correlations and resonant B$\pi$ and BK production (1994)

Akers, R J, Alexander, Gideon, Allison, J, Ametewee, K A, Anderson, K J, Arcelli, S, ...

A Test of $CP$ Invariance in $Z^{0} \to \tau^{+}\tau^{-}$ using Optimal Observables (1994)

Akers, R J, Alexander, Gideon, Allison, J, Ametewee, K A, Anderson, K J, Arcelli, S, ...

A measurement of the QCD colour factor ratios C$_{A}$/C$_{F}$ and T$_{F}$/C$_{F}$ from angular correlations in four-jet events (1994)

Akers, R J, Alexander, Gideon, Allison, J, Anderson, K J, Arcelli, S, Asai, S, ...

Updated measurement of the $\tau$ lifetime (1994)

Akers, R J, Alexander, Gideon, Allison, J, Anderson, K J, Arcelli, S, Asai, S, ...

Determination of event shape distributions and $\alpha_{s}^{b}$ from Z$^{0}$ --> b$\overline{b}$ events at LEP (1994)

Akers, R J, Alexander, Gideon, Allison, J, Anderson, K J, Arcelli, S, Asai, S, ...