Elastic J / Production at HERA (2009)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, B. Antunovic, S. Aplin, ...
Abstract Cross sections for elastic production of J / mesons in photoproduction and electropro-duction are measured in electron proton collisions at HERA using an integrated luminosity of 55 pb-1....
Submitted to Phys. Lett. B (2009)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, B. Antunovic, S. Aplin, ...
submitted to Nuclear Physics B (2009)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, V. Arkadov, A. Astvatsatourov, ...
Abstract Internal jet structure in dijet production in deep-inelastic scattering is measured with theH1 detector at HERA. Jets with transverse energies ET;Breit? 5 GeV are selected in theBreit frame...
Multi-Lepton Production at High Transverse Momenta in epCollisions at HERA (2009)
H Collaboration, F. D. Aaron, C. Alexa, V. Andreev, B. Antunovic, S. Aplin, ...
Abstract Processes leading to a final state with at least two high transverse momentum leptons(electrons or muons) are studied using the full e+-p data sample collected by the H1 exper-iment at HERA....
Submitted to Phys. Lett. B (2009)
H Collaboration, F. D. Aaron, C. Alexa, V. Andreev, B. Antunovic, S. Aplin, ...
Abstract A search for excited electrons is performed using the full e+-p data sample collectedby the H1 experiment at HERA, corresponding to a total luminosity of 475 pb-1. Theelectroweak decays of...
A Determination of Electroweak Parameters at HERA (2009)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, ...
Abstract Using the deep inelastic e+p and e-p charged and neutral current scattering cross sectionspreviously published, a combined electroweak and QCD analysis is performed to determine electroweak...
Measurement of Beauty Production at HERAUsing Events with Muons and Jets (2009)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, ...
Abstract A measurement of the beauty production cross section in ep collisions at a centre-of-massenergy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in...
Submitted to Nuclear Physics B (2009)
H Collaboration, C. Adloff, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, ...
Abstract With the H1 detector at the ep collider HERA, D\Lambda meson production cross sections havebeen measured in deep inelastic scattering with four-momentum transfers Q2? 2 GeV2and in...
Measurement of Dijet Cross Sections in ep Interactions witha Leading Neutron at HERA (2009)
H Collaboration, N. Berger, J. C. Bizot, V. Boudry, J. Bracinik, ...
Abstract Measurements are reported of the production of dijet events with a leading neutron in epinteractions at HERA. Differential cross sections for photoproduction and deep inelastic scattering...
H Collaboration, W. Bartel, S. Baudr, S. Baumgartner, J. Becker, M. Beckingham, ...
Abstract The production of forward jets has been measured in deep inelastic ep collisions at HERA.The results are presented in terms of single differential cross sections as a function of the Bjorken...
Strangeness Production at low Q2in Deep-Inelastic ep Scattering at HERA (2009)
H Collaboration, F. D. Aaron, C. Alexa, V. Andreev, B. Antunovic, S. Aplin, ...
Abstract The production of neutral strange hadrons is investigated using deep-inelastic scatteringevents measured with the H1 detector at HERA. The measurements are made in the phase space defined by...
Submitted to Nuclear Physics B (2009)
H Collaboration, C. Adloff, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, ...
Abstract With the H1 detector at the ep collider HERA, D\Lambda meson production cross sections havebeen measured in deep inelastic scattering with four-momentum transfers Q2? 2 GeV2and in...
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, B. Antunovic, S. Aplin, ...
Abstract Data taken with positrons of different longitudinal polarisation states in collision with un-polarised protons at HERA are used to measure the total cross sections of the charged current...
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, B. Antunovic, S. Aplin, ...
Abstract A search for a narrow baryonic resonance decaying to K0s p or K0s _p is carried out indeep inelastic ep scattering with the H1 detector at HERA. Such a resonance could be a strange...
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, V. Arkadov, A. Astvatsatourov, ...
Abstract The inclusive cross section for the photoproduction of neutral pions has been measuredas a function of the transverse momentum, rapidity, and Feynman x of the ss 0 mesons at an average...
Search for Leptoquark Bosons in ep Collisions at HERA (2009)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, ...
Abstract A search for scalar and vector leptoquarks coupling to first generation fermions is per-formed using the e+p and e-p scattering data collected by the H1 experiment between1994 and 2000. The...
Submitted to Physics Letters (2009)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, V. Arkadov, A. Astvatsatourov, ...
Study of Charm Fragmentation into D*+- Mesons inDeep-Inelastic Scattering at HERA (2009)
H Collaboration, F. D. Aaron, W. Bartel, M. Beckingham, K. Begzsuren, O. Behnke, ...
Abstract The process of charm quark fragmentation is studied using D*+- meson production in deep-inelastic scattering as measured by the H1 detector at HERA. The parameters of fragmentation functions...
Search for Baryonic Resonances Decaying to \Xi ssin Deep-Inelastic Scattering at HERA (2008)
H Collaboration, A. Aktas, C. Alexa, V. Andreev, T. Anthonis, B. Antunovic, ...
Abstract A search for narrow baryonic resonances decaying into \Xi-ss- or \Xi-ss+ and their antipar-ticles is carried out with the H1 detector using deep inelastic scattering events at HERA in the...
Diffractive Photoproduction of J / Mesonswith Large Momentum Transfer at HERA (2008)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, A. Astvatsatourov, A. Babaev, ...
Abstract The diffractive photoproduction of J / mesons is measured with the H1 detector at the epcollider HERA using an integrated luminosity of 78 pb-1. The differential cross section doe(flp!...
The proton structure function F2(x, Q 2) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access the kinematic range...
A detailed analysis is presented of the diffractive deep-inelastic scattering process ep → eXY, where Y is a proton or a low mass proton excitation carrying a fraction 1−x IP> 0.95 of the...
\Lambda \Sigma Meson Production in Deep-Inelastic Diffractive Interactions at HERA (2008)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, ...
Abstract A measurement is presented of the cross section for D\Lambda \Sigma meson production in diffractivedeep-inelastic scattering for the first time at HERA. The cross section is given for the...
Measurement of Dijet Electroproductionat Small Jet Separation (2008)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, ...
Abstract Deep-inelastic scattering data in the range 150 < Q2 < 35 000 GeV2 are used to investigatethe minimum jet separation necessary to allow accurate description of the rate of dijet...
A detailed analysis is presented of the diffractive deep-inelastic scattering process ep → eXY, where Y is a proton or a low mass proton excitation carrying a fraction 1−x IP> 0.95 of the...
Measurement of Beauty Production at HERAUsing Events with Muons and Jets (2008)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, ...
Abstract A measurement of the beauty production cross section in ep collisions at a centre-of-massenergy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in...
Search for Lepton Flavour Violationin ep Collisions at HERA (2008)
H Collaboration, A. Aktas, C. Alexa, V. Andreev, T. Anthonis, B. Antunovic, ...
ep collisions with a coupling strengthof * = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95 % confidence level up to masses of
Measurement of Isolated Photon Production inDeep-Inelastic Scattering at HERA (2008)
H Collaboration, F. D. Aaron, A. Aktas, C. Alexa, V. Andreev, B. Antunovic, ...
Abstract The production of isolated photons in deep-inelastic scattering ep! eflX is measuredwith the H1 detector at HERA. The measurement is performed in the kinematic range of negative...
DESY 06-048 ISSN 0418-9833 May 2006 (2008)
The cross section for the diffractive deep-inelastic scattering process ep eXp is measured, with the leading final state proton detected in the H1 Forward Proton Spectrometer.
DESY 04--083 ISSN 0918--9833 Measurement of the Proton Structure Function F 2 (2008)
In Qed Compton, H Collaboration
The proton structure function F 2 (x, Q ) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA.QED Compton events are used to access the kinematic range...
DESY 04--083 ISSN 0918--9833 Measurement of the Proton Structure Function F 2 (2008)
In Qed Compton, H Collaboration
The proton structure function F 2 (x, Q ) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA.QED Compton events are used to access the kinematic range...
Inclusive Parton Cross Sections in Photoproduction and Photon Structure (2008)
Collaborati On, H Collaboration, T. Ahmed, V. Andreev
: Photoproduction of 2-jet events is studied with the H1 detector at HERA. Parton cross sections are extracted from the data by an unfolding method using leading order parton-jet correlations of a...
Study of Charm Fragmentation into D ∗ ± Mesons in Deep-Inelastic Scattering at HERA (2008)
The process of charm quark fragmentation is studied using D ∗ ± meson production in deepinelastic scattering as measured by the H1 detector at HERA. The parameters of fragmentation functions are...
First Observation of Open b Production at HERA (2007)
The first observation of open b production in ep collisions is reported. The measurement was carried out using data taken by the H1 experiment at HERA at a centre of mass energy of
Measurement of the Di-jet Cross Section in Photoproduction at HERA (2007)
Using 1996 data collected by the H1-collaboration at the HERA-collider the differential di-jet cross section doe=dx jets fl is measured in photoproduction processes. The kinematic range covered...
Precision Measurement of the Inclusive Deep Inelastic (2007)
Scattering Cross Section, H Collaboration, For Q
: A measurement of the deep inelastic scattering cross section is reported for momentum transfers squared 2 Q 2 120 GeV 2 and for Bjorken-x values 3 \Delta 10 \Gamma5 ! x ! 0:1. The data were...
A search has been performed for stable heavy charged particles in photoproduction at HERA. The study is based on about 3:5 \Delta 10 6 selected multi-hadronic events, taken by the H1 detector and...
The Gluon Density of the Proton at Low (2007)
From Qcd Analysis, H Collaboration, V. Andreev
: We present a QCD analysis of the proton structure function F 2 measured by the H1 experiment at HERA, combined with data from previous fixed target experiments. The gluon density is extracted from...
Elastic and Inelastic Photoproduction of (2007)
Mesons At Hera, H Collaboration, J. Bahr
Results on J=/ production in ep interactions in the H1 experiment at HERA are presented. The J=/ mesons are produced by almost real photons (Q 2 0) and detected via their leptonic decays. The data...
Study of Differential Dijet Event Distributions and Determination of (2007)
Events with a dijet topology are studied in deeply inelastic scattering at HERA in the kinematic range Q 2 > 150 GeV 2 . The distribution of jet quantities such as jet polar angles, jet resolution...
Results are given for the inclusive photoproduction of protons and antiprotons measured with the H1 detector in ep collisions at HERA. The particle identification is based on dE=dx measurement. A...
Study of the photon remnant in resolved processes at HERA (2007)
Collabora Ti On, H Collaboration
Events with a resolved photon, x < 0:75, and two hard jets in the nal state are used to study the transverse momentum of the photon remnant in photo { and low { Q 2 (1:4 Q 2 25 GeV 2 ) production....
Jet Production at HERA and Virtual Photon Structure (2007)
Collabora Ti On, Low Q, H Collaboration, Where E
The transition between photoproduction and deep-inelastic scattering is investigated in jet production at the HERA ep collider, using data collected by the H1 experiment. Measurements of the...
Fragmentation Measurements in the Breit Frame at HERA (2007)
Collabora Ti On, H Collaboration
Deep inelastic positron-proton scattering data, taken in 1996 at the H1 detector at HERA, are analysed in the Breit frame of reference. Violations of scale invariance in the current hemisphere...
Preliminary results on the inclusive D \Sigma production in deep inelastic ep scattering are presented for momentum transfers squared 2 GeV 2 ! Q 2 ! 100 GeV 2 using the data collected by the H1...
Strange Particle Production in Deep-Inelastic Scattering at HERA (2007)
Collabora Ti On, H Collaboration
The production of charged kaons is studied in deep-inelastic positron-proton scattering data taken with the H1 detector at the ep collider HERA. Measurements are presented of the distributionsof...
Double Diffraction Dissociation at large (2007)
In Photoproduction At, H Collaboration
The double dissociation photoproduction cross section for the process flp ! XY is measured for the first time at large 4-momentum transfer squared jtj ? 20GeV 2 . The systems X and Y are separated by...
Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure (2007)
Collabora Ti On, H Collaboration, C. Adloff, V. Andreev, B. Andrieu
The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x is scattered from a parton in the...
At the HERA electron-proton collider a search for events with a high energy lepton and an imbalance in transverse momentum has been performed in the e \Gamma p data collected in 1998 and early 1999....
Thrust Jet Analysis of Deep--Inelastic Large--Rapidity--Gap Events H1 Collaboration (2007)
A thrust analysis of Large-Rapidity-Gap events in deep-inelastic ep collisions is presented, using data taken with the H1 detector at HERA in 1994. The average thrust of the final states X , which...
A Search for Leptoquark Bosons and Lepton Flavor Violation in (2007)
Collisions At Hera, H Collaboration
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37 pb 1 . First...
Measurement of Elastic Electroproduction of (2007)
Mesons At Hera, H Collaboration
The elastic electroproduction of mesons is studied at HERA with the H1 detector for photon virtualities 1 < Q 2 < 15 GeV 2 and hadronic centre of mass energies 40 < W < 130 GeV. The Q 2...
Meson Cross Sections, H Collaboration, C. Adloff
With the H1 detector at the ep collider HERA, D meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q 2 ? 2 GeV 2 and in photoproduction at...
Deep Inelastic Scattering Events with a Large Rapidity Gap at HERA (2007)
Collabora Ti On, H Collaboration
Evidence is presented using data taken with the H1 detector at HERA for a class of deep inelastic electron--proton scattering (DIS) events (5 ! Q 2 ! 120 GeV 2 ) at low Bjorken-x (10 \Gamma4 ! x ! 10...
Study of Event Shapes in Deep Inelastic Scattering (2007)
Collabora Ti On, H Collaboration
DIS e p data are used to study event shape variables over a large range of momentum transfer Q. The Q dependence of the mean values and spectra is analysed in terms of pQCD calculations and power law...
A Measurement of the Proton Structure Function (2007)
Collabora Ti On, H Collaboration
: A measurement of the proton structure function F 2 (x; Q 2 ) is reported for momentum transfers squared Q 2 between 4.5 GeV 2 and 1600 GeV 2 and for Bjorken x between 1:8 \Delta 10 \Gamma4 and 0:13...
First Measurement of the Charged Current Cross Section at HERA (2007)
Collabora Ti On, H Collaboration, T. Ahmed, V. Andreev, B. Andrieu
: The cross section of the charged current process e \Gamma p ! e + hadrons is measured at HERA for transverse momenta of the hadron system larger than 25 GeV. The size of the cross section exhibits...
Inelastic Photoproduction of (2007)
At Collaborati On, H Collaboration
An updated measurement of the inelastic photoproduction of J= mesons at photon proton center of mass energies 60 < W < 180 GeV is presented. Data from 1996 and 1997 with an integrated...
Test of the Standard Model in high (2007)
Jet Production At, H Collaboration
Following the observation by H1 of unexpected events with jets, high P T leptons and large missing transverse momentum, we explore final states with similar kinematic configurations but only high P T...
The measured differential cross section d=dQ 2 of the neutral current reaction e + p ! e + hadrons is compared to the Standard Model expectation and analyzed to search for (e e)(q q) contact...
Measurements of the laboratory frame transverse energy (E T ) flow in deep--inelastic diffractive (DID) events are presented. These were made using the H1 detector at HERA. Comparisons are made...
Measurement of Open Beauty Production at HERA (2007)
Collabora Ti On, H Collaboration
The first observation of open b production in ep collisions is reported. An event sample containing muons and jets has been selected which is enriched in semileptonic b quark decays. The visible...
A Search for Leptoquark Bosons in DIS at High (2007)
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994!1997 data corresponding to an integrated luminosity of 37 pb \Gamma1 . The very...
The differential cross sections, doe=dt, for exclusive J=/ photoproduction are studied for jtj 1 GeV 2 at different values of the flp centre of mass energy, W . The exchanged Regge trajectory is...
A measurement is presented of D \Sigma meson production in diffractive interactions at HERA. The data correspond to an integrated luminosity of 20.8 pb \Gamma1 . Using the decay channel D + ! D 0 ß...
A Study of the Fragmentation of Quarks in (2007)
Gamma Collisions, H Collaboration
: Deep inelastic scattering (DIS) events, selected from 1993 data taken by the H1 experiment at HERA, are studied in the Breit frame of reference. The fragmentation function of the quark is compared...
A Study of the Fragmentation of Quarks in (2007)
Gamma Collisions, H Collaboration
: Deep inelastic scattering (DIS) events, selected from 1993 data taken by the H1 experiment at HERA, are studied in the Breit frame of reference. The fragmentation function of the quark is compared...
The inclusive single and double differential cross sections for neutral and charged current processes with Q 2 between 200 and 30000 GeV 2 are measured in e + p collisions with the H1 detector at...
Production in Deep Inelastic (2007)
Scattering At, H Collaboration
First results on inclusive (\Gamma) D 0 and D \Sigma production in deep inelastic ep scattering are reported using data collected by the H1 experiment at HERA in 1994. Differential cross sections are...
Ti On, H Collaboration, From Gev
Measurements of transverse energy flow are presented for deep-inelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum transfers (Q 2 )...
Inclusive Photoproduction, H Collaboration
The recently installed high resolution backward calorimeter SpaCal of H1 allows the reconstruction of neutral pions through their decays into two photons. The SpaCal covers the rapidity range...
Scaling Violations of the Proton Structure Function (2007)
At Small, H Collaboration, Larger Than Gev
An analysis is presented of scaling violations of the proton structure function F 2 (x; Q 2 ) measured with the H1 detector at HERA in the range of Bjorken x values between x = 3 \Delta 10 \Gamma4...
Ti On, H Collaboration, C. Adloff, M. Anderson, V. Andreev
A search for events with an imbalance in transverse momentum and with isolated high energy leptons has been carried out at the positron-proton collider HERA. One event with an e \Gamma and five...
Leptoquarks and Compositeness Scales from a Contact Interaction Analysis of Deep Inelastic (2007)
Sigma Scattering, H Collaboration
. A contact interaction analysis is presented to search for new phenomena beyond the Standard Model in deep inelastic e \Sigma p ! e \Sigma hadrons scattering. The data are collected with the H1...
The energy dependence of the cross-section for the reaction flp ! J=/p has been studied over an extended range in the H1 detector at HERA. Results are presented spanning the kinematic region 30 ! W !...
DIFFRACTIVE DIJET AND 3-JET ELECTROPRODUCTION AT HERA (2007)
A new H1 measurement of diractive dijet and 3-jet production cross sections in diractive deep inelastic scattering events of the type ep! eXY is presented. The data constrain well the diractive gluon...
Diffractive Jet-production, H Collaboration
A measurement is presented of dijet and 3-jet cross sections in low-jtj diffractive deepinelastic scattering interactions of the type ep! eXY, where the photon dissociation system X is separated by a...
St International Conference, H Collaboration
Parallel Session 6 www-h1.desy.de/h1/www/publications/conf/conf list.html Measurement and NLO DGLAP QCD Interpretation of Diffractive Deep-Inelastic Scattering at HERA H1 Collaboration Abstract A...
Search for Lepton Flavour Violation in ep Collisions at HERA (2007)
A search for the lepton flavour violating processes ep → µX and ep → τX is performed with the H1 experiment at HERA. Final states with a muon or tau and a hadronic jet are searched for in a...
Measurements are presented of differential dijet cross sections in diffractive photoproduction (��GeV) and deep-inelastic scattering processes (DIS,����GeV). The event topology is...
Measurement of Isolated Photon Production in Deep-Inelastic Scattering at HERA (2007)
The production of isolated photons in deep-inelastic scattering ep → eγX is measured with the H1 detector at HERA. The measurement is performed in the kinematic range of negative four-momentum...
Dijet Cross Sections and Parton Densities in Diffractive DIS at HERA (2007)
Differential dijet cross sections in diffractive deep-inelastic scattering are measured with the H1 detector at HERA using an integrated luminosity of 51.5 pb −1. The selected events are of the...
Charged Particle Production in High Q 2 Deep-Inelastic Scattering at HERA (2007)
The average charged track multiplicity and the normalised distribution of the scaled momentum, xp, of charged final state hadrons are measured in deep-inelastic ep scattering at high Q 2 in the Breit...
Inclusive jet production is studied in neutral current deep-inelastic positron-proton scattering at large four momentum transfer squared Q 2> 150 GeV 2 with the H1 detector at HERA. Single and...
Measurement of Deeply Virtual Compton Scattering (2007)
and its t-dependence at HERA
Search for Baryonic Resonances Decaying to Ξπ in Deep-Inelastic Scattering at HERA (2007)
A search for narrow baryonic resonances decaying into Ξ−π − or Ξ−π + and their antiparticles is carried out with the H1 detector using deep inelastic scattering events at HERA in the range...
DESY 06-164 ISSN 0418-9833 October 2006 (2006)
Diffractive Open Charm, H Collaboration
Measurements are presented of diffractive open charm production at HERA. The event topology is given by ep eXY where the system X contains at least one charmed hadron and is well separated by a large...
Photoproduction of Dijets with High Transverse Momenta at HERA (2006)
Differential dijet cross sections are measured in photoproduction in the region of photon virtualities Q with the H1 detector at the HERA ep collider using an integrated luminosity of 66.6 pb -1 ....
April Measurement Of, H Collaboration
A measurement of charm and beauty dijet photoproduction cross sections at the ep collider HERA is presented. Events are selected with two or more jets of transverse momentum t > 11(8) GeV in the...
Inclusive D ∗ ± Meson Cross Sections and D ∗ ±-Jet Correlations in Photoproduction at HERA (2006)
Differential photoproduction cross sections are measured for events containing D # mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated luminosity...
DESY 06-038 ISSN 0418-9833 April 2006 (2006)
A search for the single production of doubly-charged Higgs bosons H in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of...
DESY 06-023 ISSN 0418-9833 March 2006 (2006)
Diffractive Photoproduction Of, H Collaboration
e#Y , with large momentum transfer squared at the proton vertex, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb -1 . The photon-proton centre of mass energy spans...
DESY 06-044 ISSN 0418-9833 April 2006 Search for a Narrow Baryonic Resonance Decaying to K (2006)
In Deep Inelastic, H Collaboration
A search for a narrow baryonic resonance decaying to K s p is carried out in deep inelastic ep scattering with the H1 detector at HERA. Such a resonance could be a strange pentaquark Q , evidence for...
Search for Doubly-Charged Higgs Boson Production at HERA (2006)
A search for the single production of doubly-charged Higgs bosons H ± ± in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons,...
Diffractive Photoproduction of ρ Mesons with Large Momentum Transfer at HERA (2006)
The diffractive photoproduction of ρ mesons, ep → eρY, with large momentum transfer squared at the proton vertex, |t|, is studied with the H1 detector at HERA using an integrated luminosity of...
Production of D ∗ ± Mesons with Dijets in Deep-Inelastic Scattering at HERA (2006)
Inclusive D ∗ ± production is measured in deep-inelastic ep scattering at HERA with the H1 detector. In addition, the production of dijets in events with a D ∗ ± meson is investigated. The...
Production of�£¦Mesons with Dijets in Deep-Inelastic Scattering at HERA (2006)
Inclusive�£¦production is measured in deep-inelastic�Ôscattering at HERA with the H1 detector. In addition, the production of dijets in events with a�£¦meson is investigated. The analysis...
Diffractive Open Charm Production in Deep-Inelastic Scattering and Photoproduction at HERA (2006)
Measurements are presented of diffractive open charm production at HERA. The event topology is given by ep → eXY where the system X contains at least one charmed hadron and is well separated by a...
A search for a narrow baryonic resonance decaying to K0 s p or K0 s ¯p is carried out in deep inelastic ep scattering with the H1 detector at HERA. Such a resonance could be a strange pentaquark Θ...
Photoproduction of Dijets with High Transverse Momenta at HERA (2006)
Differential dijet cross sections are measured in photoproduction in the region of photon virtualities Q 2 < 1 GeV 2 with the H1 detector at the HERA ep collider using an integrated luminosity of...
A measurement of charm and beauty dijet photoproduction cross sections at the ep collider HERA is presented. Events are selected with two or more jets of transverse momentum p jet 1(2) t> 11(8)...
Inclusive D ∗ ± Meson Cross Sections and D ∗ ±-Jet Correlations in Photoproduction at HERA (2006)
Differential photoproduction cross sections are measured for events containing D ∗± mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated...
Submitted to Eur. Phys. J. C (2006)
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, B. Antunovic, S. Aplin, ...
DESY 05-110 ISSN 0418-9833 July 2005 Measurement of F (2005)
At Low And, At Low Q, H Collaboration
Measurements are presented of inclusive charm and beauty cross sections in e p collisions at HERA for values of photon virtuality 12 and of the Bjorken scaling variable 0.0002 0.005. The fractions of...
Data taken with positrons of different longitudinal polarisation states in collision with unpolarised protons at HERA are used to measure the total cross sections of the charged current process, e #X...
Measurement of Charm and Beauty Photoproduction at HERA using D ∗ µ Correlations (2005)
A measurement of charm and beauty photoproduction at the electron proton collider HERA is presented based on the simultaneous detection of a D # meson and a muon. The correlation between the D #...
Measurement of Beauty Production at HERA Using Events with Muons and Jets (2005)
A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the...
Measurement of Deeply Virtual Compton Scattering at HERA (2005)
A measurement is presented of elastic deeply virtual Compton scattering # # p #p made using e p collision data corresponding to a luminosity of 46.5 pb -1 , taken with the H1 detector at HERA. The...
DESY 05-225 ISSN 0418-9833 December 2005 (2005)
Measurement Of Event, H Collaboration
Deep-inelastic ep scattering data taken with the H1 detector at HERA and corresponding to an integrated luminosity of 106 pb -1 are used to study the differential distributions of event shape...
using the H1 Vertex Detector at HERA (2005)
Measurements are presented of inclusive charm and beauty cross sections in e + p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 60 GeV 2 and of the Bjorken scaling variable 0.0002...
Data taken with positrons of different longitudinal polarisation states in collision with unpolarised protons at HERA are used to measure the total cross sections of the charged current process, e +...
Measurement of Beauty Production at HERA Using Events with Muons and Jets (2005)
A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the...
Measurement of Deeply Virtual Compton Scattering at HERA (2005)
A measurement is presented of elastic deeply virtual Compton scattering γ ∗ p → γp made using e + p collision data corresponding to a luminosity of 46.5 pb −1, taken with the H1 detector at...
using the H1 Vertex Detector at HERA (2005)
Measurements are presented of inclusive charm and beauty cross sections in e + p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 60 GeV 2 and of the Bjorken scaling variable 0.0002...
Measurement of Charm and Beauty Photoproduction at HERA using D ∗ µ Correlations (2005)
A measurement of charm and beauty photoproduction at the electron proton collider HERA is presented based on the simultaneous detection of a D ∗ ± meson and a muon. The correlation between the D...
Search for Squark Production in R-Parity Violating Supersymmetry at HERA (2004)
A search for squarks in R-parity violating supersymmetry is performed in e p collisions at HERA using the H1 detector. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an...
A general search for new phenomena in ep scattering at HERA (2004)
A model-independent search for deviations from the Standard Model prediction is performed in e p and e - p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb -1 ....
DESY 04--051 ISSN 0418--9833 April 2004 (2004)
Forward Production And, H Collaboration, A. Aktas, V. Andreev, T. Anthonis, A. Asmone, ...
Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x 10 -5 which give rise to high transverse momentum # # -mesons are studied with the H1 experiment at HERA. The...
DESY 04-209 ISSN 0418-9833 October 2004 Measurement of F (2004)
At High Using, H Collaboration
Measurements are presented of inclusive charm and beauty cross sections in e p collisions at HERA for values of photon virtuality Q and of inelasticity 0.1 0.7.
A general search for new phenomena in ep scattering at HERA (2004)
A model-independent search for deviations from the Standard Model prediction is performed in e p and e - p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb -1 ....
Search for Light Gravitinos in Events with Photons and Missing Transverse Momentum at HERA (2004)
A search for gravitinos produced in e p collisions is performed using the H1 detector at HERA. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity of...
Measurement of Dijet Cross Sections in ep Interactions with a Leading Neutron at HERA (2004)
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are...
DESY 04--051 ISSN 0418--9833 April 2004 (2004)
Forward Production And, H Collaboration, A. Aktas, V. Andreev, T. Anthonis, A. Asmone, ...
Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x 10 -5 which give rise to high transverse momentum # # -mesons are studied with the H1 experiment at HERA. The...
DESY 04-247 ISSN 0418-9833 December 2004 (2004)
Measurement Of Dijet, H Collaboration
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are...
Measurement of Prompt Photon Cross Sections in Photoproduction at HERA (2004)
Results are presented on the photoproduction of isolated prompt photons, inclusively and associated with jets, in the #p center of mass energy range 142 266 GeV. The cross sections are measured for...
DESY 04--156 ISSN 0418--9833 August 2004 Inclusive Production of D (2004)
And Mesons In, H Collaboration
Inclusive production cross sections are measured in deep inelastic scattering at HERA for meson states composed of a charm quark and a light antiquark or the charge conjugate. The measurements cover...
Search for Squark Production in R-Parity Violating Supersymmetry at HERA (2004)
A search for squarks in R-parity violating supersymmetry is performed in e p collisions at HERA using the H1 detector. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an...
DESY 04-240 ISSN 0418-9833 December 2004 (2004)
Direct Search For, H Collaboration
A direct search has been made for magnetic monopoles produced in e p collisions at a centre of mass energy of 300 GeV at HERA. The beam pipe surrounding the interaction region in 1995-1997 was...
DESY 04-209 ISSN 0418-9833 October 2004 Measurement of F (2004)
At High Using, H Collaboration
Measurements are presented of inclusive charm and beauty cross sections in e p collisions at HERA for values of photon virtuality Q and of inelasticity 0.1 0.7.
Search for Light Gravitinos in Events with Photons and Missing Transverse Momentum at HERA (2004)
A search for gravitinos produced in e p collisions is performed using the H1 detector at HERA. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity of...
The cross section for anti-deuteron photoproduction is measured at HERA at a mean centreof -mass energy of W #p = 200 GeV in the range 0.2 T /M 0.7 and 0.4, where M , p T and y are the mass,...
Measurement of Dijet Cross Sections in ep Interactions with a Leading Neutron at HERA (2004)
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are...
Search for Squark Production in R-Parity Violating Supersymmetry at HERA (2004)
A search for squarks in R-parity violating supersymmetry is performed in e ± p collisions at HERA using the H1 detector. The data were taken at a centre-of-mass energy of 319 GeV and correspond to...
Search for Light Gravitinos in Events with Photons and Missing Transverse Momentum at HERA (2004)
A search for gravitinos produced in e ± p collisions is performed using the H1 detector at HERA. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity...
A general search for new phenomena in ep scattering at HERA (2004)
A model-independent search for deviations from the Standard Model prediction is performed in e + p and e − p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb...
Inclusive Production of D +, D 0, D + s and D∗+ Mesons in Deep Inelastic Scattering at HERA (2004)
Inclusive production cross sections are measured in deep inelastic scattering at HERA for meson states composed of a charm quark and a light antiquark or the charge conjugate. The measurements cover...
H Collaboration, A. Aktas, V. Andreev, T. Anthonis, A. Asmone, A. Astvatsatourov, ...
Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x ≈ 4 · 10 −5 which give rise to high transverse momentum π ◦-mesons are studied with the H1 experiment at HERA....
using the H1 Vertex Detector at HERA (2004)
Measurements are presented of inclusive charm and beauty cross sections in e + p collisions at HERA for values of photon virtuality Q2> 150 GeV2 and of inelasticity 0.1 < y < 0.7. The charm...
A Direct Search for Stable Magnetic Monopoles Produced in Positron-Proton Collisions at HERA (2004)
A direct search has been made for magnetic monopoles produced in e + p collisions at a centre of mass energy of 300 GeV at HERA. The beam pipe surrounding the interaction region in 1995-1997 was...
Measurement of Prompt Photon Cross Sections in Photoproduction at HERA (2004)
Results are presented on the photoproduction of isolated prompt photons, inclusively and associated with jets, in the γp center of mass energy range 142 < W < 266 GeV. The cross sections are...
Measurement and QCD Analysis of Neutral and Charged Current Cross Sections at HERA (2003)
The inclusive e p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken in 1999 and 2000 at a...
Muon Pair Production in ep Collisions at HERA (2003)
Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity...
Desy-03-132 Issn 0418-9833 (2003)
October Search For, H Collaboration
A search for single top quark production is performed in e p collisions at HERA. The search exploits data corresponding to an integrated luminosity of 118.3 pb -1 . A model for the anomalous...
Measurement and QCD Analysis of Neutral and Charged Current Cross Sections at HERA (2003)
The inclusive e p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken in 1999 and 2000 at a...
Inclusive Dijet Production at Low Bjorken-x in Deep Inelastic Scattering (2003)
Dijet production in deep inelastic ep scattering is investigated in the region of low values of the Bjorken-variable x (10 -4 x 10 -2 ) and low photon virtualities Q (5 ). The measured dijet cross...
Multi–Electron Production at High Transverse Momenta in ep Collisions at HERA (2003)
Multi--electron production is studied at high electron transverse momentum in positron-- and electron--proton collisions using the H1 detector at HERA. The data correspond to an integrated luminosity...
Multi–Electron Production at High Transverse Momenta in ep Collisions at HERA (2003)
Multi--electron production is studied at high electron transverse momentum in positron-- and electron--proton collisions using the H1 detector at HERA. The data correspond to an integrated luminosity...
Muon Pair Production in ep Collisions at HERA (2003)
Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity...
Desy-03-132 Issn 0418-9833 (2003)
October Search For, H Collaboration
A search for single top quark production is performed in e p collisions at HERA. The search exploits data corresponding to an integrated luminosity of 118.3 pb -1 . A model for the anomalous...
Inclusive Dijet Production at Low Bjorken-x in Deep Inelastic Scattering (2003)
Dijet production in deep inelastic ep scattering is investigated in the region of low values of the Bjorken-variable x (10 -4 x 10 -2 ) and low photon virtualities Q (5 Q 100 GeV ). The measured...
Inclusive Dijet Production at Low Bjorken-x in Deep Inelastic Scattering (2003)
Dijet production in deep inelastic ep scattering is investigated in the region of low values of the Bjorken-variable x (10 −4 < x < 10 −2) and low photon virtualities Q 2 (5 < Q 2 <...
Measurement and QCD Analysis of Neutral and Charged Current Cross Sections at HERA (2003)
The inclusive e + p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken in 1999 and 2000 at a...
Multi–Electron Production at High Transverse Momenta in ep Collisions at HERA (2003)
Multi–electron production is studied at high electron transverse momentum in positron– and electron–proton collisions using the H1 detector at HERA. The data correspond to an integrated...
Diffractive Photoproduction of J/ψ Mesons with Large Momentum Transfer at HERA (2003)
The diffractive photoproduction of J/ψ mesons is measured with the H1 detector at the ep collider HERA using an integrated luminosity of 78 pb −1. The differential cross section dσ(γp →...
DESY 02-062 ISSN 0418-9833 May 2002 (2002)
Search For Qcd, H Collaboration
Signals of QCD instanton-induced processes are searched for in deep-inelastic scattering (DIS) at the electron-proton collider HERA in a kinematic region defined by the Bjorkenscaling variables x...
DESY 02-087 ISSN 0418-9833 June 2002 Search for Odderon-Induced Contributions to Exclusive (2002)
Photoproduction At Hera, H Collaboration
A search for contributions to the reaction ep e# # N # from photon-Odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-ofmass energy = 215 GeV. The...
Energy Flow and Rapidity Gaps Between Jets in Photoproduction at HERA (2002)
Dijet events in photon-proton collisions in which there is a large pseudorapidity separation ## > 2.5 between the two highest E T jets are studied with the H1 detector at HERA. The inclusive dijet...
Measurement of Inclusive Jet Cross-Sections in Deep-Inelastic ep Scattering at HERA (2002)
A measurement of inclusive jet cross-sections in deep-inelastic ep scattering at HERA is presented based on data with an integrated luminosity of 21.1 pb -1 . The measurement is performed for photon...
Search for Odderon-Induced Contributions to Exclusive π ◦ Photoproduction at HERA (2002)
A search for contributions to the reaction ep → eπ ◦ N ∗ from photon-Odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-ofmass energy 〈W 〉...
Measurement of Inclusive Jet Cross-Sections in Deep-Inelastic ep Scattering at HERA (2002)
A measurement of inclusive jet cross-sections in deep-inelastic ep scattering at HERA is presented based on data with an integrated luminosity of 21.1 pb −1. The measurement is performed for photon...
Energy Flow and Rapidity Gaps Between Jets in Photoproduction at HERA (2002)
Dijet events in photon-proton collisions in which there is a large pseudorapidity separation ∆η> 2.5 between the two highest E T jets are studied with the H1 detector at HERA. The inclusive...
Search for QCD Instanton-Induced Processes in Deep-Inelastic Scattering at HERA (2002)
Signals of QCD instanton-induced processes are searched for in deep-inelastic scattering (DIS) at the electron-proton collider HERA in a kinematic region defined by the Bjorkenscaling variables x>...
DESY 01--021 ISSN 0418--9833 February 2001 (2001)
Searches At Hera, H Collaboration, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, ...
A search for squarks in R-parity violating supersymmetry is performed in e p collisions at HERA at a centre of mass energy of 300 GeV, using H1 data corresponding to an integrated luminosity of 37 pb...
Measurement of Deeply Virtual Compton Scattering at HERA (2001)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, ...
A measurement is presented of elastic Deeply Virtual Compton Scattering e + p ! + + p at HERA using data taken with the H1 detector. The cross section is measured as a function of the photon...
DESY 01-225 ISSN 0418-9833 December 2001 (2001)
Measurement Of Dijet, H Collaboration
Dijet cross sections as functions of several jet observables are measured in photoproduction using the H1 detector at HERA. The data sample comprises e p data with an integrated luminosity of 34.9 pb...
DESY 01-100 ISSN 0418-9833 July 2001 Measurement of D (2001)
Meson Production And, H Collaboration, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, ...
The inclusive production of D (2010) mesons in deep-inelastic scattering is studied with the H1 detector at HERA. In the kinematic region 1 and 0:05 0:7 an e p cross section for inclusive D meson...
Three-Jet Production in Deep-Inelastic Scattering at HERA (2001)
H Collaboration, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, ...
Three-jet production is studied for the first time in deep-inelastic positron-proton scattering. The measurement carried out with the H1 detector at HERA covers a large range of fourmomentum transfer...
DESY-01-104 ISSN 0418-9833 July 2001 On the Rise of the Proton Structure Function F 2 (2001)
Towards Low Collaboration, H Collaboration, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, ...
A measurement of the derivative (@ ln F 2 =@ ln x) Q 2 (x; Q ) of the proton structure function F 2 is presented in the low x domain of deeply inelastic positron--proton scattering. For 5 10 x 0:01...
H Collaboration, Adloff Andrieu, T. Anthonis, Babaev Bähr, Baranov Barrelet, O. Behnke, ...
A measurement is presented of elastic Deeply Virtual Compton Scattering ¢¡¤£¦¥¨§ ¡ £�©�£� ¥ at HERA using data taken with the H1 detector. The cross section is measured as a...
Measurement of Dijet Cross Sections in Photoproduction at HERA (2001)
Dijet cross sections as functions of several jet observables are measured in photoproduction using the H1 detector at HERA. The data sample comprises e + p data with an integrated luminosity of 34.9...
Submitted to Phys. Lett. B (2001)
Towards Low, H Collaboration, Adloff C, V. Andreev, B. Andrieu, T. Anthonis, ...
A measurement of the ¤¦¥¨§�©�������¥¨§�©���������������¤¦���� � � � derivative of the proton structure �� � function is...
Three-Jet Production in Deep-Inelastic Scattering at HERA (2001)
H Collaboration, C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, ...
Three-jet production is studied for the first time in deep-inelastic positron-proton scattering. The measurement carried out with the H1 detector at HERA covers a large range of fourmomentum transfer...
H Collaboration, Bartel�� Bate Beglarian, Brown� Brückner, Bröker Braunschweig, Brisson Boudry
The inclusive of¨�©������������� � production mesons in deep-inelastic scattering is studied with the H1 detector at HERA. In the...
H Collaboration, T. Anthonis, Bate Becker, O. Behnke, C. Beier, T. Berndt
A measurement is presented of the cross section for ¤¦¥¨ § meson production in diffractive deep–inelastic scattering for the first time at HERA. The cross section is given for the process...
Measurement of Dijet Electroproduction at Small Jet Separation (2001)
Deep-inelastic scattering data in the range 150 < Q 2 < 35 000 GeV 2 are used to investigate the minimum jet separation necessary to allow accurate description of the rate of dijet production...
DESY-00-143 ISSN0418-9833 September 2000 Dijet Production in Charged and Neutral Current (2000)
Interactions At High, H Collaboration
Jet production in charged and neutral current events in the kinematic range of Q from 640 to 35 000 GeV is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of multi-jet...
DESY-00-145 ISSN 0418-9833 October 2000 (2000)
Measurement And Qcd, H Collaboration
Jet production is studied in the Breit frame in deep-inelastic positron-proton scattering over a large range of four-momentum transfers 5 and transverse jet energies 7 T 60 GeV. The analysis is based...
DESY 00--174 ISSN 0418--9833 December 2000 (2000)
Diffractive Jet Production, H Collaboration, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, ...
A measurement is presented of dijet and 3-jet cross sections in low-jtj diffractive deepinelastic scattering interactions of the type ep ! eXY , where the system X is separated by a large rapidity...
At High, H Collaboration, C. Adloff, T. Anthonis
The inclusive £¥¤§ ¦ single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA, in the range of four-momentum transfer...
Submitted to Physics Letters B Andreev� (2000)
H Collaboration, Adloff Andrieu, Babaev Bähr
The £¥¤§¦© ¨ £�¤� � reaction is studied with the H1 detector at HERA. The data cover momentum �� � transfers ������������ � between...
Submitted to Physics Letters (2000)
H Collaboration, Adloff C, V. Andreev, B. Andrieu, I. Ayyaz, A. Babaev, ...
The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction ¢ ¡ is scattered from a parton in...
Deep-Inelastic Inclusive ¢ ¡ Scattering at Low £ and a Determination of ¤¦¥ (2000)
A precise measurement of the inclusive deep-inelastic §©¨� � scattering cross section is reported in the kinematic range ������������ � ���� � GeV � and...
H Collaboration, Adloff Andrieu, Bähr Baranov, Babaev Barrelet, O. Behnke, C. Beier, ...
The elastic electroproduction of ¡ mesons is studied at HERA with the H1 detector for photon virtualities ¢¤£¦¥¨§¤£©¢��������� § and hadronic centre of mass energies...
H Collaboration, Andrieu C, T. Anthonis, Ayyaz Bähr, Bartel Babaev, Berger Bate Beglarian
Jet production is studied in the Breit frame in deep-inelastic positron-proton scattering over a large range of four-momentum transfers¢¤£¦¥¨§©£���¢��������©��...
Diffractive Jet Production in Deep-Inelastic ¢¡¤ £ Collisions at HERA (2000)
H Collaboration, Adloff Andrieu, Babaev Bartel
A measurement is presented of dijet and 3-jet cross sections in low- ¥ ¦§ ¥ diffractive deepinelastic scattering interactions of the type ¨�©���¨��� � , where the system � is...
H Collaboration, Adloff Andrieu, O. Behnke, C. Beier
The inclusive cross section for the photoproduction of neutral pions has been measured as a function of the transverse momentum, rapidity, and Feynman ¢ of the mesons at an average...
Measurements of Transverse Energy Flow in Deep-Inelastic Scattering at HERA (1999)
Measurements of transverse energy ow are presented for neutral current deepinelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum...
Collabora Ti On, H Collaboration
We have measured the inclusive jet cross section in the Breit frame in deep-inelastic scattering at large four momentum transfers squared Q 2 and large transverse jet energies E T using the inclusive...
The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q 2 between 150 and 30 000 GeV 2 and with Bjorken x between...
H Collaboration, C. Adloff, V. Andreev, B. Andrieu
Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet...
Event Shapes and Power Corrections in ep DIS (1999)
Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to analyze the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential...
Elastic Electroproduction of�Mesons at HERA (1999)
H Collaboration, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, U. Bassler, ...
The elastic electroproduction of mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 and for a hadronic centre of mass energy in the range 30 140 GeV. The shape of...
Submitted to The European Physical Journal C Andreev� (1999)
H Collaboration, Adloff Andrieu
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity ¥§ ¦ of ¨� © pb....
H Collaboration, Arkadov Astvatsatourov Ayyaz, A. Beglarian, O. Behnke, C. Beier
The elastic electroproduction of ¡ mesons is studied at HERA with the H1 detector for a photon virtuality in the range ¢¤£¦¥¨§©£����������� § and for a hadronic...
DESY 98--204 ISSN 0418--9833 December 1998 Measurement of D (1998)
Meson Cross Sections, H Collaboration, C. Adloff, M. Anderson, V. Andreev, B. Andrieu, ...
With the H1 detector at the ep collider HERA, D meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q > 2 GeV and in photoproduction at...
H Collaboration, Adloff Anderson, Andreev Andrieu, Babaev Barrelet, M. Beck, A. Beglarian, ...
With the H1 detector at ¢¤ £ the collider ¥§ ¦ HERA, meson production cross sections have been measured in deep inelastic scattering with four-momentum ¨�©��� � GeV© transfers and...
Submitted to European Physics Journal C (1998)
H Collaboration, M. Anderson, V. Andreev Arkadov, B. Andrieu, C. Arndt Adloff, I. Ayyaz, ...
A search for events with an imbalance in transverse momentum and with isolated high energy leptons has been carried out at the positron-proton collider HERA. One event with an ¢ ¡ ¤ and five...
Submitted to Nuclear Physics B (1998)
H Collaboration, C. Adloff, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, ...
With the H1 detector at the �Ô collider HERA, � £ meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers É � GeV and in photoproduction...
H Collaboration, Adloff Andrieu, Babaev Barrelet, A. Beglarian, O. Behnke, ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ¢¡¤ £ ¥§¦©¨������� � GeV are...
Submitted to Eur. Phys. J. (1998)
H Collaboration, C. Adloff, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, ...
Deep–inelastic scattering events with a leading baryon have been detected by the H1 experiment at HERA using a forward proton spectrometer and a forward neutron calorimeter. Semi–inclusive cross...
Submitted to The European Physical JournalAnderson *. (1998)
H Collaboration, Biddulph Borras, Dirkmann Dlugosz, Kolya Krämerkämper
Events with a (2+1) jet topology in deep–inelastic scattering at HERA are studied in the kinematic range Q 10 000 GeV. The rate of (2+1) jet events has been determined with the modified JADE jet...
Rapidity Gaps Between Jets in Photoproduction at HERA (1997)
Collabora Ti On, H Collaboration, Parallel Sessions
Photoproduction events which have two or more jets with transverse energy E T ? 4:5 GeV have been studied in the flp centre of mass energy range 158 GeV ! W ! 247 GeV with the H1 detector at HERA....
A Measurement of the Proton Structure Function F_2(x, Q (1997)
F (x Q, At Low X, Low Q, H Collaboration, Between Gev
: The results of a measurement of the proton structure function F 2 (x; Q 2 ) and the virtual photon-proton cross section are reported for momentum transfers squared Q 2 between 0.35 GeV 2 and 3.5...
Diffraction Dissociation in Photoproduction at HERA H1 Collaboration (1997)
A study is presented of the process flp ! XY , where there is a large rapidity gap between the systems X and Y . Measurements are made of the differential cross section as a function of the invariant...
A Measurement and QCD Analysis of the Proton Structure Function F_2(x,Q²) at HERA (1996)
: A new measurement of the proton structure function F 2 (x; Q 2 ) is reported for momentum transfers squared Q 2 between 1.5 GeV 2 and 5000 GeV 2 and for Bjorken x between 3 \Delta 10 \Gamma5 and...
Photoproduction Collaboration, Diffractive J Photoproduction, H Collaboration
Elastic photoproduction of J= mesons is analysed using data from 1996 and 1997 corresponding to an integrated luminosity of about R L dt 21 pb 1 . The energy dependence of the total photoproduction...
Experimental Study of Hard Photon Radiation Processes at HERA (1995)
H Collaboration, T. Ahmed, S. Aid
: We present an experimental study of the ep ! efl + p and ep ! efl + X processes using data recorded by the H1 detector in 1993 at the electron-proton collider HERA. These processes are employed to...
Measurement of the Proton Structure Function F_2(x,Q^2) in the Low x Region at HERA (1993)
I. Abt, T. Ahmed, B. Andrieu, H Collaboration, ...
: A measurement of the proton structure function F 2 (x; Q 2 ) is presented with about 1000 neutral current deep inelastic scattering events for Bjorken x in the range x ' 10 \Gamma2 \Gamma 10...
Inclusive Charged Particle Cross Sections in Photoproduction at HERA (1981)
Collabora Ti On, H Collaboration, I. Abt, T. Ahmed
: Cross sections are presented for the inclusive production of charged particles measured in electron-proton collisions at low Q 2 with the H1 detector at HERA. The transverse momentum distribution...
Inclusive Charged Particle Cross Sections in Photoproduction at HERA (1981)
Collabora Ti On, H Collaboration, I. Abt, T. Ahmed
: Cross sections are presented for the inclusive production of charged particles measured in electron-proton collisions at low Q 2 with the H1 detector at HERA. The transverse momentum distribution...
Strangeness Production in Deep-Inelastic Positron-Proton Scattering at HERA.
Collabora Ti On, H Collaboration
Measurements are presented of K 0 meson and baryon production in deep-inelastic positron-proton scattering (DIS) in the kinematic range 10 ! Q 2 ! 70 GeV 2 and 10 \Gamma4 ! x ! 10 \Gamma2 . The...
Observation of Hard Processes in Rapidity Gap Events in
Interactions At, H Collaboration, T. Ahmed, V. Andreev
: Events with no hadronic energy flow in a large interval of pseudo-rapidity in the proton direction are observed in photon-proton interactions at an average centre of mass energy ! p s flp ? of 200...
H Collaboration, F. D. Aaron, A. Aktas, C. Alexa, V. Andreev, B. Antunovic, ...
Abstract A measurement of elastic deeply virtual Compton scattering fl\Lambda p! flp using e\Gamma p col-lision data recorded with the H1 detector at HERA is presented. The analysed data sample...