J/psi suppression in an equilibrating parton plasma

被引:102
作者
Xu, XM
Kharzeev, D
Satz, H
Wang, XN
机构
[1] ACAD SINICA, SHANGHAI INST NUCL RES, DIV THEORY, SHANGHAI 201800, PEOPLES R CHINA
[2] CERN, DIV THEORY, CH-1211 GENEVA, SWITZERLAND
[3] UNIV BIELEFELD, FAK PHYS, D-33501 BIELEFELD, GERMANY
来源
PHYSICAL REVIEW C | 1996年 / 53卷 / 06期
关键词
D O I
10.1103/PhysRevC.53.3051
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Short-distance QCD is employed to calculate the J/psi survival probability in an equilibrating parton gas whose evolution is governed by a set of master rate equations. Partons in the early stage of high-energy nuclear collisions may initially not be in equilibrium, but their average transverse momentum is sufficiently high to break up a Q (Q) over bar bound state. Such a breakup during the evolution of the parton gas is shown to cause a substantial J/psi suppression at both RHIC and LHC energies, using realistic estimates of the initial parton densities. The transverse momentum dependence of the suppression is also shown to be sensitive to the initial conditions and the evolution history of the parton plasma.
引用
收藏
页码:3051 / 3056
页数:6
相关论文
共 51 条
[1]   SUCCESSIVE EQUILIBRATION IN QUARK-GLUON PLASMA [J].
ALAM, JE ;
RAHA, S ;
SINHA, B .
PHYSICAL REVIEW LETTERS, 1994, 73 (14) :1895-1898
[2]   MULTIPARTICLE PRODUCTION IN A 2-COMPONENT DUAL PARTON MODEL [J].
AURENCHE, P ;
BOPP, FW ;
CAPELLA, A ;
KWIECINSKI, J ;
MAIRE, M ;
RANFT, J ;
VAN, JTT .
PHYSICAL REVIEW D, 1992, 45 (01) :92-105
[3]   DTUJET-93 - SAMPLING INELASTIC PROTON-PROTON AND ANTIPROTON-PROTON COLLISIONS ACCORDING TO THE 2-COMPONENT DUAL PARTON MODEL [J].
AURENCHE, P ;
BOPP, FW ;
ENGEL, R ;
PERTERMANN, D ;
RANFT, J ;
ROESLER, S .
COMPUTER PHYSICS COMMUNICATIONS, 1994, 83 (01) :107-123
[4]  
BAIER R, 1995, PHYS LETT B, V356, P349
[5]   SHORT-DISTANCE ANALYSIS FOR HEAVY-QUARK SYSTEMS .2. APPLICATIONS [J].
BHANOT, G ;
PESKIN, ME .
NUCLEAR PHYSICS B, 1979, 156 (03) :391-416
[6]   COLOR SCREENING IN RELATIVISTIC HEAVY-ION COLLISIONS [J].
BIRO, TS ;
MULLER, B ;
WANG, XN .
PHYSICS LETTERS B, 1992, 283 (3-4) :171-173
[7]   PARTON EQUILIBRATION IN RELATIVISTIC HEAVY-ION COLLISIONS [J].
BIRO, TS ;
VANDOORN, E ;
MULLER, B ;
THOMA, MH ;
WANG, XN .
PHYSICAL REVIEW C, 1993, 48 (03) :1275-1284
[8]   HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION [J].
BJORKEN, JD .
PHYSICAL REVIEW D, 1983, 27 (01) :140-151
[9]   THE EARLY STAGE OF ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS [J].
BLAIZOT, JP ;
MUELLER, AH .
NUCLEAR PHYSICS B, 1987, 289 (3-4) :847-860
[10]   HEAVY-QUARK AND LEPTON-PAIR PRODUCTION ON NUCLEI [J].
BORESKOV, K ;
CAPELLA, A ;
KAIDALOV, A ;
VAN, JTT .
PHYSICAL REVIEW D, 1993, 47 (03) :919-932