Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV

doi:10.1103/PHYSREVLETT.98.192301

Title: Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV

Full Record
Similar

Abstract

The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2<p{sub T}<10 GeV/c) in p+p, d+Au, and Au+Au collisions at {radical}(s{sub NN})=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p{sub T}, suggesting substantial heavy-quark energy loss at RHIC. The centrality and p{sub T} dependences of the suppression provide constraints on theoretical models of suppression.

Authors:

Abelev, B. I.; Barannikova, O.; Betts, R. R.; Callner, J.; Garcia-Solis, E.; Hofman, D.; Hollis, R.; Iordanova, A.; Suarez, M. C. ^[1]; Aggarwal, M. M.; Bhati, A. K.; Kumar, A.; Sharma, M. ^[2]; Ahammed, Z.; Chattopadhyay, S.; Das, D.; Dutta Mazumdar, M. R.; Ganti, M. S.; Ghosh, P.; Nayak, T. K. ^[3]

University of Illinois, Chicago, Illinois 61801 (United States)
Panjab University, Chandigarh 160014 (India)
Variable Energy Cyclotron Centre, Kolkata 700064 (India) (and others)

Publication Date:: Fri May 11 00:00:00 EDT 2007

OSTI Identifier:: 20951350

Resource Type:: Journal Article

Resource Relation:: Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 19; Other Information: DOI: 10.1103/PhysRevLett.98.192301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B QUARKS; BNL; BROOKHAVEN RHIC; C QUARKS; COLLIDING BEAMS; ELECTRONS; ENERGY LOSSES; FLAVOR MODEL; GEV RANGE 100-1000; GOLD 197 BEAMS; GOLD 197 REACTIONS; GOLD 197 TARGET; MESONS; SEMILEPTONIC DECAY; T QUARKS; TRANSVERSE MOMENTUM

Citation Formats


                    Abelev, B. I., Barannikova, O., Betts, R. R., Callner, J., Garcia-Solis, E., Hofman, D., Hollis, R., Iordanova, A., Suarez, M. C., Aggarwal, M. M., Bhati, A. K., Kumar, A., Sharma, M., Ahammed, Z., Chattopadhyay, S., Das, D., Dutta Mazumdar, M. R., Ganti, M. S., Ghosh, P., and Nayak, T. K. Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV.  United States: N. p., 2007. 
        Web.  doi:10.1103/PHYSREVLETT.98.192301.

Copy to clipboard


                    Abelev, B. I., Barannikova, O., Betts, R. R., Callner, J., Garcia-Solis, E., Hofman, D., Hollis, R., Iordanova, A., Suarez, M. C., Aggarwal, M. M., Bhati, A. K., Kumar, A., Sharma, M., Ahammed, Z., Chattopadhyay, S., Das, D., Dutta Mazumdar, M. R., Ganti, M. S., Ghosh, P., & Nayak, T. K. Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV.  United States.  doi:10.1103/PHYSREVLETT.98.192301.

Copy to clipboard


                    Abelev, B. I., Barannikova, O., Betts, R. R., Callner, J., Garcia-Solis, E., Hofman, D., Hollis, R., Iordanova, A., Suarez, M. C., Aggarwal, M. M., Bhati, A. K., Kumar, A., Sharma, M., Ahammed, Z., Chattopadhyay, S., Das, D., Dutta Mazumdar, M. R., Ganti, M. S., Ghosh, P., and Nayak, T. K. Fri .  
        "Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV".  United States.  
        doi:10.1103/PHYSREVLETT.98.192301.

Copy to clipboard


                    
@article{osti_20951350,

  title        = {Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV},

  author       = {Abelev, B. I. and Barannikova, O. and Betts, R. R. and Callner, J. and Garcia-Solis, E. and Hofman, D. and Hollis, R. and Iordanova, A. and Suarez, M. C. and Aggarwal, M. M. and Bhati, A. K. and Kumar, A. and Sharma, M. and Ahammed, Z. and Chattopadhyay, S. and Das, D. and Dutta Mazumdar, M. R. and Ganti, M. S. and Ghosh, P. and Nayak, T. K.},

  abstractNote = {The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2<p{sub T}<10 GeV/c) in p+p, d+Au, and Au+Au collisions at {radical}(s{sub NN})=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p{sub T}, suggesting substantial heavy-quark energy loss at RHIC. The centrality and p{sub T} dependences of the suppression provide constraints on theoretical models of suppression.},

  doi          = {10.1103/PHYSREVLETT.98.192301},

  journal      = {Physical Review Letters},

  number       = 19,

  volume       = 98,

  place        = {United States},

  year         = {Fri May 11 00:00:00 EDT 2007},

  month        = {Fri May 11 00:00:00 EDT 2007}

}

Copy to clipboard

Journal Article:

DOI: 10.1103/PHYSREVLETT.98.192301

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Transverse momentum and centrality dependence of high-p{sub T} nonphotonic electron suppression in Au+Au collisions at {radical}{ovr s}{sub NN} = 200 GeV.

Krueger, K. ; McClain, C. J. ; Spinka, H. M. ; ... - Phys. Rev. Lett.

The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2 < p{sub T} < 10 GeV/c) in p+p, d+Au, and Au+Au collisions at {radical}s{sub NN} = 200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p{sub T}, suggesting substantial heavy-quark energy loss at RHIC. The centrality and p{sub T} dependences of the suppression provide constraints on theoretical models of suppression.
DOI: 10.1103/PhysRevLett.98.192301
Erratum: Transverse Momentum and Centrality Dependence of High-p{sub T} Nonphotonic Electron Suppression in Au+Au Collisions at {radical}(s{sub NN})=200 GeV[Phys. Rev. Lett. 98, 192301 (2007)]

Abelev, B. I. ; Aggarwal, M. M. ; Ahammed, Z. ; ... - Physical Review Letters

No abstract prepared.
DOI: 10.1103/PHYSREVLETT.106.159902
Transverse momentum and centrality dependence of high-ptnon-photonic electron suppression in Au+Au collisions at $$\sqrt{s_{NN}}$$= 200 GeV

Abelev, B.I. ; Adams, J. ; Aggarwal, M.M. ; ... - Physical Review Letters

The STAR collaboration at RHIC reports measurements of theinclusive yield of non-photonic electrons, which arise dominantly fromsemi-leptonic decays of heavy flavor mesons, over a broad range oftransverse momenta (1.2
Full Text Available
System Size and Centrality Dependence of Charged Hadron Transverse Momentum Spectra in Au+Au and Cu+Cu Collisions at {radical}(s{sub NN})=62.4 and 200 GeV

Alver, B. ; Ballintijn, M. ; Busza, W. ; ... - Physical Review Letters

We present transverse momentum distributions of charged hadrons produced in Cu+Cu collisions at {radical}(s{sub NN})=62.4 and 200 GeV. The spectra are measured for transverse momenta of 0.25<p{sub T}<5.0 GeV/c at {radical}(s{sub NN})=62.4 GeV and 0.25<p{sub T}<7.0 GeV/c at {radical}(s{sub NN})=200 GeV, in a pseudorapidity range of 0.2<{eta}<1.4. The nuclear modification factor R{sub AA} is calculated relative to p+p data at both collision energies as a function of collision centrality. At a given collision energy and fractional cross section, R{sub AA} is observed to be systematically larger in Cu+Cu collisions compared to Au+Au. However, for the same number of participating nucleons,more »« less
DOI: 10.1103/PhysRevLett.96.212301
Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions at {radical}(s{sub NN})=200 GeV: Jet quenching and the response of partonic matter

Adare, A. ; Bickley, A. A. ; Ellinghaus, F. ; ... - Physical Review. C, Nuclear Physics

Azimuthal angle ({delta}{phi}) correlations are presented for charged hadrons from dijets for 0.4<p{sub T}<10 GeV/c in Au+Au collisions at {radical}(s{sub NN})=200 GeV. With increasing p{sub T}, the away-side distribution evolves from a broad and relatively flat shape to a concave shape, then to a convex shape. Comparisons to p+p data suggest that the away-side can be divided into a partially suppressed 'head' region centered at {delta}{phi}{approx}{pi} and an enhanced 'shoulder' region centered at {delta}{phi}{approx}{pi}{+-}1.1. The p{sub T} spectrum for the head region softens toward central collisions, consistent with the onset of jet quenching. The spectral slope for the shoulder regionmore »« less
DOI: 10.1103/PHYSREVC.77.011901