Thermal hadron production in Si-Au collisions

被引：93

作者：

Cleymans, J

Elliott, D

Satz, H

Thews, RL

机构：

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

[2] UNIV BIELEFELD, FAK PHYS, D-33501 BIELEFELD, GERMANY

[3] UNIV ARIZONA, DEPT PHYS, TUCSON, AZ 85721 USA

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 74卷 / 02期

关键词：

D O I：

10.1007/s002880050393

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The most abundantly produced hadron species in Si-Au collisions at the BNL-AGS (nucleons, pions, kaons, antikaons and hyperons) are shown to be in accord with emission from a thermal resonance gas source. Within the uncertainties of the present data, two freeze-out points are possible. The best agreement is obtained for a temperature T similar or equal to 110 MeV and a baryochemical potential mu(B) similar or equal to 540 MeV, corresponding to about 1/3 standard nuclear density. Another possible point lies at about twice nuclear density, with T similar or equal to 110 MeV and mu(B) similar or equal to 620 MeV. Our analysis takes the isopin asymmetry of the initial state fully into account.

引用

页码：319 / 323

页数：5

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