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

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.

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. ; ... January 2007 - 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. ; ... April 2011 - 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. ; ... July 2006 - 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. ; ... June 2006 - 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. ; ... January 2008 - 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

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

Abstract

Citation Formats

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.

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)]

Transverse momentum and centrality dependence of high-ptnon-photonic electron suppression in Au+Au collisions at $$\sqrt{s_{NN}}$$= 200 GeV

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

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