S. Dhawan

Details der Publikationsliste

Zeitraum

1952 - 2009

Anzahl

172

Co-Autoren

Status of the muonic hydrogen Lamb-shift experiment (2008)

Nebel, T., Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., ...

The Lamb-shift experiment in muonic hydrogen (μ⁻ p) aims to measure the energy difference between the 2SF=11/2-2PF=23/2 atomic levels to a precision of 30 ppm. This would allow the r.m.s. proton...

Status of the muonic hydrogen Lamb-shift experiment (2008)

Nebel, T., Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., ...

The Lamb-shift experiment in muonic hydrogen (μ⁻ p) aims to measure the energy difference between the 2SF=11/2-2PF=23/2 atomic levels to a precision of 30 ppm. This would allow the r.m.s. proton...

Absolute polarimetry at RHIC (2007)

Okada, H., Alekseev, I., Bravar, A., Bunce, G., Dhawan, S., Eyser, K. O., ...

Precise and absolute beam polarization measurements are critical for the RHIC spin physics program. Because all experimental spin-dependent results are normalized by beam polarization, the...

Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)

Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...

Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)

Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...

Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)

Adzic, P., Alemany-Fernandez, R., Almeida, C.B., Almeida, N.M., Anagnostou, G., Anfreville, M.G., ...

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...

Muonic hydrogen cascade time and lifetime of the short-lived 2S (2007)

Ludhova, Livia, Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., ...

Metastable 2S muonic-hydrogen atoms undergo collisional 2S quenching, with rates which depend strongly on whether the µp kinetic energy is above or below the 2S -< 2P energy threshold. Above...

Muonic hydrogen cascade time and lifetime of the short-lived 2S (2007)

Ludhova, Livia, Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., ...

Metastable 2S muonic-hydrogen atoms undergo collisional 2S quenching, with rates which depend strongly on whether the µp kinetic energy is above or below the 2S -< 2P energy threshold. Above...

An Improved Shashlyk Calorimeter (2007)

Atoian, G. S., Britvich, G. I., Chernichenko, S. K., Dhawan, S., Issakov, V. V., Karavichev, O. V., ...

Shashlyk electromagnetic calorimeter modules with an energy resolution of about 3%/sqrt{E (GeV)} for 50-1000 MeV photons has been developed, and a prototype tested. Details of these improved modules,...

Measurements of Single and Double Spin Asymmetry in \textit{pp} Elastic Scattering in the CNI Region with Polarized Hydrogen Gas Jet Target (2007)

Okada, H., Alekseev, I., Bravar, A., Bunce, G., Dhawan, S., Eyser, K. O., ...

Precise measurements of the single spin asymmetry, $A_N$ and the double spin asymmetry, $A_{NN}$, in proton-proton (\textit{pp}) elastic scattering in the region of four-momentum transfer squared...

Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter (2007)

Adzic, P, Alemany-Fernandez, R, Almeida, C B, Almeida, N M, Anagnostou, G, Anfreville, M G, ...

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by...

CMS physics technical design report, volume II: Physics performance (2007)

Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...

CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...

Absolute Polarization Measurements at RHIC in the Coulomb Nuclear Interference Region (2006)

Eyser, K. O., Alekseev, I., Bravar, A., Bunce, G., Dhawan, S., Gill, R., ...

The Relativistic Heavy Ion Collider at Brookhaven National Laboratory provides polarized proton beams for the investigation of the nucleon spin structure. For polarimetry, carbon-proton and...

Muonic hydrogen cascade time and lifetime of the short-lived $2S$ state (2006)

Ludhova, L., Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., ...

Metastable ${2S}$ muonic-hydrogen atoms undergo collisional ${2S}$-quenching, with rates which depend strongly on whether the $\mu p$ kinetic energy is above or below the ${2S}\to {2P}$ energy...

Results of the first performance tests * of the CMS electromagnetic calorimeter (2006)

Adzic, P., Alemany-Fernandez, R., Almeida, C. B., Almeida, N. M., Anagnostou, G., Anfreville, M. G., ...

Performance tests of some aspects of the CMS ECAL were carried out on modules of the “barrel” sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...

Reconstruction of the signal amplitude of the CMS electromagnetic calorimeter (2006)

Adzic, P., Alemany-Fernandez, R., Almeida, C. B., Almeida, N. M., Anagnostou, G., Anfreville, M. G., ...

The amplitude of the signal collected from the PbWO4 crystals of the CMS electromagnetic calorimeter is reconstructed by a digital filtering technique. The amplitude reconstruction has been studied...

Measurement of the Analyzing Power $A_N$ in $pp$ Elastic Scattering in the CNI Region with a Polarized Atomic Hydrogen Gas Jet Target (2005)

Okada, H., Alekseev, I. G., Bravar, A., Bunce, G., Dhawan, S., Gill, R., ...

A precise measurement of the analyzing power $A_N$ in proton-proton elastic scattering in the region of 4-momentum transfer squared $0.001 < |t| < 0.032 ({\rm GeV}/c)^2$ has been performed using a...

Results of the First Performance Tests of the CMS Electromagnetic Calorimeter (2005)

Adzic, P, Alemany-Fernandez, R, Almeida, C B, Almeida, N M, Anagnostou, G, Anfreville, M G, ...

Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...

Powerful fast triggerable 6 μm laser for the muonic hydrogen 2S-Lamb shift experiment (2005)

Antognini, A., Amaro, F.D., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., Covita, D.S., ...

Laser spectroscopy of the 2S-Lamb shift in muonic hydrogen (μ−p) is being performed at the Paul Scherrer Institute, Switzerland, to determine the root-mean-square (rms) proton charge radius with...

Powerful fast triggerable 6 μm laser for the muonic hydrogen 2S-Lamb shift experiment (2005)

Antognini, A., Amaro, F.D., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., Covita, D.S., ...

Laser spectroscopy of the 2S-Lamb shift in muonic hydrogen (μ−p) is being performed at the Paul Scherrer Institute, Switzerland, to determine the root-mean-square (rms) proton charge radius with...

First observation of the decay K+ -> e+ nu mu+ mu- (2005)

Ma, H., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

Experiment 865 at the Brookhaven AGS has observed the decay K^+ -> e^+ nu mu^+ mu^-. The branching ratio extracted is (1.72 +/- 0.37(stat) +/- 0.17(syst) +/- 0.19(model)) x 10^{-8} where the third...

Planar LAAPDs: temperature dependence, performance, and application in low-energy X-ray spectroscopy (2005)

Ludhova, Livia, Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., ...

An experiment measuring the 2S Lamb shift in muonic hydrogen (μ-p) was performed at the Paul Scherrer Institute, Switzerland. It required small and compact detectors for 1.9 keV X-rays (2P–1S...

Planar LAAPDs: temperature dependence, performance, and application in low-energy X-ray spectroscopy (2005)

Ludhova, Livia, Amaro, F.D., Antognini, A., Biraben, F., Cardoso, J.M.R., Conde, C.A.N., ...

An experiment measuring the 2S Lamb shift in muonic hydrogen (μ-p) was performed at the Paul Scherrer Institute, Switzerland. It required small and compact detectors for 1.9 keV X-rays (2P–1S...

Measurement of the analyzing power in pp elastic scattering in the peak CNI region at RHIC (2005)

Okada, H., Alekseev, I. G., Bravar, A., Bunce, G., Dhawan, S., Gill, R., ...

We report the first measurements of the A_N absolute value and shape in the -t range from 0.0015 to 0.010GeV/c^2 with a precision better than 0.005 for each A_N data point using a polarized atomic...

An Improved upper limit on the decay K^+ -> pi^+ mu^+ e^- (2005)

Sher, Aleksey, Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

Based on results of a search for the lepton-family-number-violating decay $K^+ \to \pi^+\mu^+ e^-$ with data collected by experiment E865 at the Alternating Gradient Synchrotron of Brookhaven...

Spin asymmetries for events with high p_T hadrons in DIS and an evaluation of the gluon polarization (2005)

Adeva, B., Arik, E., Arvidson, A., Badeek, B., Baum, G., Berglund, P., ...

We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of...

Results of the first performance tests of the CMS electromagnetic calorimeter (2005)

Adzic, P., Alemany-Fernandez, R., B. Almeida, C., M. Almeida, N., Anagnostou, G., G. Anfreville, M., ...

Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...

Results of the first performance tests of the CMS electromagnetic calorimeter (2005)

Adzic, P., Alemany-Fernandez, R., B. Almeida, C., M. Almeida, N., Anagnostou, G., G. Anfreville, M., ...

Performance tests of some aspects of the CMS ECAL were carried out on modules of the "barrel" sub-system in 2002 and 2003. A brief test with high energy electron beams was made in late 2003 to...

Use of RAPD and AFLP Markers to Identify Inter- and Intraspecific Hybrids of Mentha (2005)

Shasany, A. K., Darokar, M. P., Dhawan, S., Gupta, A. K., Gupta, S., Shukla, A. K., ...

Three controlled crosses were carried out involving Mentha arvensis and Mentha spicata [M. spicata CIMAP/C30 × M. spicata CIMAP/C33 (cv. Neera); M. arvensis CIMAP/C18 × CIMAP/C17 (cv. Kalka); and...

Use of RAPD and AFLP Markers to Identify Inter- and Intraspecific Hybrids of Mentha (2005)

Shasany, A. K., Darokar, M. P., Dhawan, S., Gupta, A. K., Gupta, S., Shukla, A. K., ...

Three controlled crosses were carried out involving Mentha arvensis and Mentha spicata [M. spicata CIMAP/C30 x M. spicata CIMAP/C33 (cv. Neera); M. arvensis CIMAP/C18 x CIMAP/C17 (cv. Kalka); and M....

Measurement of the analyzing power of proton-carbon elastic scattering in the CNI region at RHIC (2004)

Jinnouchi, O., Alekseev, I. G., Bravar, A., Bunce, G., Dhawan, S., Huang, H., ...

The single transverse spin asymmetry, A_N, of the p-carbon elastic scattering process in the Coulomb Nuclear Interference (CNI) region was measured using an ultra thin carbon target and polarized...

Planar LAAPDs: Temperature Dependence, Performance, and Application in Low Energy X-ray Spectroscopy (2004)

Ludhova, L., Amaro, F. D., Antognini, A., Biraben, F., Cardoso, J. M. R., Conde, C. A. N., ...

An experiment measuring the 2S Lamb shift in muonic hydrogen mup is being performed at the Paul Scherrer Institute, Switzerland. It requires small and compact detectors for 1.9 keV x rays (2P-1S...

Spin asymmetries for events with high $p_T$ hadrons in DIS and an evaluation of the gluon polarization (2004)

Adeva, B, Arik, A, Arvidson, A, Badelek, B, Baum, G, Berglund, P, ...

We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of...

Spin asymmetries for events with high p_T hadrons in DIS and an evaluation of the gluon polarization (2004)

Adeva, B., Arik, E., Arvidson, A., Badeek, B., Baum, G., Berglund, P., ...

We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of...

Spin asymmetries for events with high p_T hadrons in DIS and an evaluation of the gluon polarization (2004)

Adeva, B., Arik, E., Arvidson, A., Badeek, B., Baum, G., Berglund, P., ...

We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of...

Spatio-temporal expression of wnt-1 during embryonic-, wing- and silkgland development in Bombyx mori (2003)

Dhawan, S, Gopinathan, KP

A homologue of the segment polarity gene wnt-1 from Bombyx mori (Bmwnt-1) has been characterized. The segmentally reiterated pattern of Bmwnt-1 transcrip9t distribution in B. mori embryos suggested...

New, high statistics measurement of the K+ -> pi0 e+ nu (Ke3) branching ratio (2003)

Sher, A., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

E865 at the Brookhaven National Laboratory AGS collected about 70,000 K+(e3) events with the purpose of measuring the relative K+(e3) branching ratio. The pi0 in all the decays was detected using the...

High statistics measurement of Ke4 decay properties (2003)

Pislak, S., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

We report experimental details and results of a new measurement of the decay K+ -> pi+pi-e+nue (Ke4}. A sample of more than 400,000 Ke4 events with low background has been collected by Experiment 865...

Spatio-temporal expression of wnt-1 during embryonic-, wing- and silkgland development in Bombyx mori (2003)

Dhawan, S, Gopinathan, KP

A homologue of the segment polarity gene wnt-1 from Bombyx mori (Bmwnt-1) has been characterized. The segmentally reiterated pattern of Bmwnt-1 transcrip9t distribution in B. mori embryos suggested...

Asymptomatic coronary artery disease in patients with symtomatic peripheral vascular disease detected by Dobutamine stress echo and coronary angiography. (2002)

Passey, R., Mehta, A., Parikh, R., Aggrawal, S., Gupta, A., Mohan, R., ...

Total of 186 patients with symptomatic peripheral vascular disease- PVD (Carotid / Aorto- illio -femoral disease) were evaluated at our center over past 24 months. 64 had history of CAD and underwent...

Asymptomatic carotid artery disease in patients with significant coronary artery disease undergoing coronary artery bypass grafting. (2002)

Mehta, A., Passey, R., Dhawan, S., Sachdeva, S., Mohan, R., Mantri, R.R., ...

Many studies have identified the interrelationship between carotid artery disease (CD) and coronary artery disease (CAD). The purpose of this study was to evaluate the incidence of carotid artery...

Diagnostic utility of carotid sinus massage in patients with unexplained syncope (2002)

Mehta, A., Mantri, R.R., Sawhney, J.P.S., Passey, R., Dhawan, S., Chopra, V.K., ...

The purpose of the present study was to evaluate the diagnostic utility of mechanical stimulation of carotid sinus in a series of patients with unexplained syncope. We analysed the data and found out...

Experimental Study of the Radiative Decays K+ -> mu+ nu e+e- and K+ -> e+ nu e+e- (2002)

Poblaguev, A. A., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

Experiment 865 at the Brookhaven AGS obtained 410 K+ -> e+ nu e+e- and 2679 K+ -> mu+ nu e+e- events including 10% and 19% background. The branching ratios were measured to be...

Incidence of congenital heart disease by fetal echocardiography in an urban hospital of Delhi (2002)

Lahiri, S., Dall, A., Sachdeva, S., Sharma, V., Dhawan, S., Shrivastava, S., ...

We analyzed 3393 pregnant women over a period of two years in our hospital situated in Delhi. Their ages varied from 19 to 35 years with a mean age of 24.3±4.2 years. The gestation period varied...

Intramyocardial tuberculosis (2002)

Dhall, A., Sharma, V., Dhawan, S., Yadav, S., Yadav, O.P., Lahiri, S., ...

Myocardial tuberculosis was rare even in the days before effective anti-tuberculous treatment was available and was usually an incidental finding at post-mortem. After the introduction of...

Post-myocardial infarction ventricular septal defect: coronary anatomy and cardiac hemodynamics in patients with successful surgical closure. (2002)

Dhawan, S., Dhall, A., Lahiri, S., Yadav, O.P., Khanna, O.K., Mantri, R.R., ...

Acute myocardial infarction complicated by ventricular septal defect is seen in 0.5%-l% of patients of acute myocardial infarction. We hereby present the coronary anatomy and cardiac hemodynamics in...

A new measurement of K+(e4) decay and the s-wave pi-pi-scattering length a00 (2001)

Pislak, S., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Cheung, N., ...

A sample of 400000 events from the decay K+->pi+pi-e+nu(e)(K(e4)) has been collected in experiment E865 at the Brookhaven AGS. The analysis of these data yields new measurements of the K(e4)...

Search for Lepton Flavor Violation in $K^+$ Decays (2000)

Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D., Cheung, N., Dhawan, S., ...

A search for lepton flavor violating decays, \kmmp, \keep, \kpem, \kmep and \pizem, was performed using the data collected in E865 at the Brookhaven Alternating Gradient Synchrotron. No signal was...

An Improved Limit on the Rate Of Decay K+ -> pi+ mu+ e- (2000)

Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D. R., Brown, D. N., Cheung, N., ...

The experiment E865 at BNL places an upper limit on the branching ratio for the decay K+ -> pi+ mu+ e- of 3.9x10^-11 (90% C.L.). Along with with other results this yields a combined upper limit on...

A New Measurement of the Rare Decay $K^+\to \pi^+ \mu^+ \mu^-$ (1999)

Ma, H., Appel, R., Atoyan, G. S., Bassalleck, B., Bergman, D., Cheung, N., ...

More than 400 $K^{+}\to\pi^{+}\mu^+\mu^-$ events were observed in a rare $K^+$ decay experiment at the AGS. Normalized to the $K^{+}\to\pi^{+}\pi^+\pi^-$ decay, the branching ratio is determined to...

On Reflection of Shock Waves from Boundary Layers (1998)

Liepmann, H. W., Roshko, A., Dhawan, S.

Measurements of the reflection characteristics of shock waves from a flat surface with a laminar and turbulent boundary layer are presented. The investigations were carried out at Mach numbers from...

Large enhancement of deuteron polarization with frequency modulated microwaves (1995)

Adeva, B, Ahmad, E, Arik, S, Arvidson, A, Badelek, B, Ballintijn, M K, ...

We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liters polarized target using the method of dynamic...

Measurement of parity violation in the elastic scattering of polarized electrons from 12C (1990)

Souder, P. A., Holmes, R., Kim, D. - H., Kumar, K. S., Schulze, M. E., Isakovich, K., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 12C nuclei. Our result is Aexpt=0.60±0.14±0.02 ppm, where the first error is...

On reflection of shock waves from boundary layers (1952)

Liepmann, H. W., Roshko, A., Dhawan, S.

Measurements are presented at Mach numbers from about 1.3 to 1.5 of reflection characteristics and the relative upstream influence of shock waves impinging on a flat surface with both laminar and...

On Reflection of Shock Waves from Boundary Layers (1952)

Liepmann, H. W., Roshko, A., Dhawan, S.

Measurements of the reflection characteristics of shock waves from a flat surface with a laminar and turbulent boundary layer are presented. The investigations were carried out at Mach numbers from...

Birth weights of infants of first generation Asian women in Britain compared with second generation Asian women.

Dhawan, S.

OBJECTIVES--To compare birth weights of infants of first generation Asian women (women born in the Indian subcontinent) with those of infants of second generation Asian women (born in the United...