Unified description of freeze-out parameters in relativistic heavy ion collisions

被引：321

作者：

Cleymans, J ^{[1
]}

Redlich, K

机构：

[1] Univ Cape Town, Dept Phys, ZA-7700 Rondebosch, South Africa

[2] Gesell Schwerionenforsch GmbH, D-64220 Darmstadt, Germany

[3] Univ Wroclaw, Dept Theoret Phys, PL-50138 Wroclaw, Poland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.81.5284

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the chemical freeze-out parameters obtained at CERN/SPS, BNL/AGS, and GSI/SIS energies all correspond to a unique value of 1 GeV for the average energy per hadron in the local rest frame of the system, independent of the beam energy and of the target and beam particles.

引用

收藏

页码：5284 / 5286

页数：3

相关论文

共 24 条

[1]

AVERBECK R, 1997, P TAPS WORKSH ST OD

[2] On chemical equilibrium in nuclear collisions [J].

Becattini, F ;

Gazdzicki, M ;

Sollfrank, J .

EUROPEAN PHYSICAL JOURNAL C, 1998, 5 (01) :143-153

[3] Thermal hadron production in pp and p(p)over-bar collisions [J].

Becattini, F ;

Heinz, U .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 76 (02) :269-286

[4] A thermodynamical approach to hadron production in e(+)e(-) collisions [J].

Becattini, F .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (03) :485-492

[5] Thermal and hadrochemical equilibration in nucleus nucleus collisions at the SPS [J].

BraunMunzinger, P ;

Stachel, J ;

Wessels, JP ;

Xu, N .

PHYSICS LETTERS B, 1996, 365 (1-4) :1-6

[6] Probing the phase boundary between hadronic matter and the quark-gluon plasma in relativistic heavy-ion collisions [J].

BraunMunzinger, P ;

Stachel, J .

NUCLEAR PHYSICS A, 1996, 606 (1-2) :320-328

[7] THERMAL EQUILIBRATION AND EXPANSION IN NUCLEUS-NUCLEUS COLLISIONS AT THE AGS [J].

BRAUNMUNZINGER, P ;

STACHEL, J ;

WESSELS, JP ;

XU, N .

PHYSICS LETTERS B, 1995, 344 (1-4) :43-48

[8] Thermal model analysis of particle ratios in Ni+Ni experiments using exact strangeness conservation [J].

Cleymans, J ;

Elliott, D ;

Keranen, A ;

Suhonen, E .

PHYSICAL REVIEW C, 1998, 57 (06) :3319-3323

[9] Thermal hadron production in Si-Au collisions [J].

Cleymans, J ;

Elliott, D ;

Satz, H ;

Thews, RL .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 74 (02) :319-323

[10] THERMAL HADRON-PRODUCTION IN HIGH-ENERGY HEAVY-ION COLLISIONS [J].

CLEYMANS, J ;

SATZ, H .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993, 57 (01) :135-147