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.

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}{ovr s}{sub NN} = 200 GeV.

Full Record
Other Related Research

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:: Krueger, K.; McClain, C. J.; Spinka, H. M.; Underwood, D. G.; Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; STAR Collaboration; High Energy Physics; Univ. of Illinois; Panjab Univ.; Variable Energy Cyclotron Centre; Kent State Univ.; Particale Physics Lab.

Publication Date:: Mon Jan 01 00:00:00 EST 2007

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC); National Science Foundation (NSF); Swiss NSF

OSTI Identifier:: 964643

Report Number(s):: ANL-HEP-PR-09-56
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0903606

DOE Contract Number:: DE-AC02-06CH11357

Resource Type:: Journal Article

Resource Relation:: Journal Name: Phys. Rev. Lett.; Journal Volume: 98; Journal Issue: 2007

Country of Publication:: United States

Language:: ENGLISH

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BNL; ELECTRONS; MESONS; SEMILEPTONIC DECAY; TRANSVERSE MOMENTUM

Citation Formats


                    Krueger, K., McClain, C. J., Spinka, H. M., Underwood, D. G., Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., STAR Collaboration, High Energy Physics, Univ. of Illinois, Panjab Univ., Variable Energy Cyclotron Centre, Kent State Univ., and Particale Physics Lab. 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..  United States: N. p., 2007. 
        Web.  doi:10.1103/PhysRevLett.98.192301.

Copy to clipboard


                    Krueger, K., McClain, C. J., Spinka, H. M., Underwood, D. G., Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., STAR Collaboration, High Energy Physics, Univ. of Illinois, Panjab Univ., Variable Energy Cyclotron Centre, Kent State Univ., & Particale Physics Lab. 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..  United States.  doi:10.1103/PhysRevLett.98.192301.

Copy to clipboard


                    Krueger, K., McClain, C. J., Spinka, H. M., Underwood, D. G., Abelev, B. I., Aggarwal, M. M., Ahammed, Z., Anderson, B. D., Arkhipkin, D., STAR Collaboration, High Energy Physics, Univ. of Illinois, Panjab Univ., Variable Energy Cyclotron Centre, Kent State Univ., and Particale Physics Lab. Mon .  
        "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.".  United States.  
        doi:10.1103/PhysRevLett.98.192301.

Copy to clipboard


                    
@article{osti_964643,

  title        = {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.},

  author       = {Krueger, K. and McClain, C. J. and Spinka, H. M. and Underwood, D. G. and Abelev, B. I. and Aggarwal, M. M. and Ahammed, Z. and Anderson, B. D. and Arkhipkin, D. and STAR Collaboration and High Energy Physics and Univ. of Illinois and Panjab Univ. and Variable Energy Cyclotron Centre and Kent State Univ. and Particale Physics Lab.},

  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      = {Phys. Rev. Lett.},

  number       = 2007,

  volume       = 98,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 2007},

  month        = {Mon Jan 01 00:00:00 EST 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

Similar records in OSTI.GOV collections:

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

Journal Article Abelev, B. I. ; Barannikova, O. ; Betts, R. R. ; ... - Physical Review Letters

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)]

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

No abstract prepared.
DOI: 10.1103/PHYSREVLETT.106.159902
Energy dependence of {pi}{sub {+-}},p and {bar p} transverse momentum spectra for Au+Au collisions at {radical}{ovr s}{sub NN} = 62.4 and 200 GeV.

Journal Article Abelev, B. I. ; Aggarwal, M. M. ; Ahammed, Z. ; ... - Phys. Lett. B

We study the energy dependence of the transverse momentum (p{sub T}) spectra for charged pions, protons and anti-protons for Au+Au collisions at {radical}s{sub NN} = 62.4 and 200 GeV. Data are presented at mid-rapidity (|y| < 0.5) for 0.2 < p{sub T} < 12 GeV/c. In the intermediate p{sub T} region (2 < p{sub T} < 6 GeV/c), the nuclear modification factor is higher at 62.4 GeV than at 200 GeV, while at higher p{sub T} (p{sub T} > 7 GeV/c) the modification is similar for both energies. The p/{pi}{sup +} and {bar p}/{pi}{sup -} ratios for central collisions atmore »« less
DOI: 10.1016/j.physletb.2007.06.035
Centrality dependence of charged hadron transverse momentum spectra in d+Au collisions at {radical}{ovr{sup S}NN} = 200 GeV.

Journal Article Back, B. B. ; Baker, M. D. ; Ballintijn, M. ; ... - Phys. Rev. Lett.

We have measured transverse momentum distributions of charged hadrons produced in Au+Au collisions at {radical}{ovr S{sub NN}} = 62.4 GeV. The spectra are presented for transverse momenta 0.25 < p{sub T} < 4.5 GeV/c, in a pseudo-rapidity range of 0.2 < {eta} < 1.4. The nuclear modification factor R{sub AA} is calculated relative to p+p data at the same collision energy as a function of collision centrality. For 2 < p{sub T} < 4.5 GeV/c, R{sub AA} is found to be significantly larger than in Au+Au collisions at {radical}{ovr S{sub NN}} = 130 and 200 GeV. In contrast to themore »« less
Letter to the Editor : Transverse-momentum {rho}{ sub t} correlations on ({eta},{phi}) from mean-{rho}{sub t}) fluctuations in Au-Au collisions at {radical}{ovr s}{sub NN} = 200 GeV.

Journal Article Cadman, R. V. ; Krueger, K. ; McClain, C. J. ; ... - J. Phys. G

We present first measurements of the pseudorapidity and azimuth ({eta}, {phi}) bin-size dependence of event-wise mean transverse-momentum <p{sub T}> fluctuations for Au-Au collisions at {radical}s{sub NN} = 200 GeV. We invert that dependence to obtain p{sub t} autocorrelations on differences ({eta}{sub {Delta}}, {phi}{sub {Delta}}) interpreted to represent velocity/temperature distributions on ({eta}, {phi}). The general form of the autocorrelations suggests that the basic correlation mechanism is parton fragmentation. The autocorrelations vary rapidly with collision centrality, which suggests that fragmentation is strongly modified by a dissipative medium in the more central Au-Au collisions relative to peripheral or p-p collisions.
DOI: 10.1088/0954-3899/32/6/L02

Similar Records