STRANGENESS PRODUCTION IN HEAVY-ION COLLISIONS AT FINITE BARYON NUMBER DENSITY

被引：63

作者：

CLEYMANS, J

SATZ, H

SUHONEN, E

VONOERTZEN, DW

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV BIELEFELD,FAK PHYS,W-4800 BIELEFELD,GERMANY

[3] UNIV OULU,DEPT THEORET PHYS,SF-90570 OULU 57,FINLAND

来源：

PHYSICS LETTERS B | 1990年 / 242卷 / 01期

关键词：

D O I：

10.1016/0370-2693(90)91604-A

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the K+/π+ and K-/π- production rates in heavy ion collisions, using a hadron gas model which includes baryon repulsion and intermediate resonances, taking strangeness conservation into account. In such a description, the state of the system is specified by its temperature T and its baryon number density nB. Fixing the K+/π+ and K-/π- rates then determines the freeze-out values of T and nB. The production rates recently measured in silicon-gold collisions at the Brookhaven AGS energies are shown to give 93 ≤ T ≤ 112 MeV and 0.02 ≤ nB ≤ 0.12 baryons/fm3. © 1990.

引用

页码：111 / 114

页数：4

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