Quark liberation and coalescence at CERN SPS

被引:68
作者
Zimányi, J [1 ]
Biró, TS [1 ]
Csörgo, T [1 ]
Lévai, P [1 ]
机构
[1] MTA KFKI RMKI, H-1525 Budapest 114, Hungary
基金
匈牙利科学研究基金会;
关键词
D O I
10.1016/S0370-2693(99)01461-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The linear coalescence approach to hadronization of quark matter is shown to have problems with strangeness conservation in a baryon rich environment. The simplest correct quark counting is shown to coincide with the non-linear algebraic coalescence rehadronization model, ALCOR. We argue that experimental facts agree with the assumption that quark degrees of freedom are liberated before hadron formation in 158 AGeV central Pb + Pb collisions at CERN SPS. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:243 / 246
页数:4
相关论文
共 14 条
[1]   Quark model and strange baryon production in heavy ion collisions [J].
Bialas, A .
PHYSICS LETTERS B, 1998, 442 (1-4) :449-452
[2]   QUARK GLUON PLASMA FORMATION IN HEAVY-ION COLLISIONS AND QUARKOCHEMISTRY [J].
BIRO, TS ;
ZIMANYI, J .
NUCLEAR PHYSICS A, 1983, 395 (02) :525-538
[3]   Hadronization with a confining equation of state [J].
Biró, TS ;
Lévai, P ;
Zimányi, J .
PHYSICAL REVIEW C, 1999, 59 (03) :1574-1584
[4]   ALCOR - A DYNAMICAL MODEL FOR HADRONIZATION [J].
BIRO, TS ;
LEVAI, P ;
ZIMANYI, J .
PHYSICS LETTERS B, 1995, 347 (1-2) :6-12
[5]   Hadronization of massive quark matter [J].
Biró, TS ;
Lévai, P ;
Zimányi, J .
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1999, 25 (02) :311-320
[6]  
BIRO TS, 1997, J PHYS G, V23, P1941
[7]  
Bormann C, 1997, J PHYS G NUCL PARTIC, V23, P1817
[8]  
Caliandro R, 1999, J PHYS G NUCL PARTIC, V25, P171, DOI 10.1088/0954-3899/25/2/004
[9]  
Kaneta M, 1997, J PHYS G NUCL PARTIC, V23, P1865, DOI 10.1088/0954-3899/23/12/010
[10]   STRANGENESS IN RELATIVISTIC HEAVY-ION COLLISIONS [J].
KOCH, P ;
MULLER, B ;
RAFELSKI, J .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1986, 142 (04) :167-262