DILEPTON AND PHOTON PRODUCTION IN THE HOT-GLUE SCENARIO

被引:107
作者
SHURYAK, E
XIONG, L
机构
[1] Department of Physics, State University of New York at Stony Brook, Stony Brook
关键词
D O I
10.1103/PhysRevLett.70.2241
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Perturbative analysis of parton kinetics for high energy nuclear collisions shows that thermal equilibration of gluons happens very fast, while quark production is much slower. A simple ''minimal model'' is proposed which includes only incoming quarks and antiquarks. We have found that a smaller quark number is more than compensated by the fact that they are imbedded into the hotter glue. Predicted yield of dileptons and photons in the interesting kinematic region are larger than considered before, and are quite observable at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider.
引用
收藏
页码:2241 / 2244
页数:4
相关论文
共 23 条
[1]   PRODUCTION-RATE OF HARD THERMAL PHOTONS AND SCREENING OF QUARK MASS SINGULARITY [J].
BAIER, R ;
NAKKAGAWA, H ;
NIEGAWA, A ;
REDLICH, K .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1992, 53 (03) :433-438
[2]   THE EARLY STAGE OF ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS [J].
BLAIZOT, JP ;
MUELLER, AH .
NUCLEAR PHYSICS B, 1987, 289 (3-4) :847-860
[3]  
ESKOLA KJ, 1988, PHYS LETT B, V215, P375
[4]   THERMALIZATION IN ULTRARELATIVISTIC NUCLEAR COLLISIONS .2. ENTROPY PRODUCTION AND ENERGY DENSITIES AT THE BNL RELATIVISTIC HEAVY-ION COLLIDER AND THE CERN LARGE HADRON COLLIDER [J].
GEIGER, K .
PHYSICAL REVIEW D, 1992, 46 (11) :4986-5005
[5]   THERMALIZATION IN ULTRARELATIVISTIC NUCLEAR COLLISIONS .1. PARTON KINETICS AND QUARK-GLUON PLASMA FORMATION [J].
GEIGER, K .
PHYSICAL REVIEW D, 1992, 46 (11) :4965-4985
[6]   DYNAMICS OF PARTON CASCADES IN HIGHLY RELATIVISTIC NUCLEAR COLLISIONS [J].
GEIGER, K ;
MULLER, B .
NUCLEAR PHYSICS B, 1992, 369 (03) :600-654
[7]   DILEPTON RADIATION FROM CASCADING PARTONS IN ULTRARELATIVISTIC NUCLEAR COLLISIONS [J].
GEIGER, K ;
KAPUSTA, JI .
PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1920-1923
[8]   RADIATIVELY GENERATED PARTON DISTRIBUTIONS FOR HIGH-ENERGY COLLISIONS [J].
GLUCK, M ;
REYA, E ;
VOGT, A .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1990, 48 (03) :471-482
[9]   SEMIHARD PROCESSES IN QCD [J].
GRIBOV, LV ;
LEVIN, EM ;
RYSKIN, MG .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1983, 100 (1-2) :1-150
[10]   INITIAL TEMPERATURE AND THERMALIZATION TIME IN HEAVY-ION COLLISIONS [J].
HWA, RC ;
KAJANTIE, K .
PHYSICAL REVIEW LETTERS, 1986, 56 (07) :696-699