THE INFLUENCE OF RESONANCE DECAYS ON THE PT SPECTRA FROM HEAVY-ION COLLISIONS

被引：108
|
作者：
SOLLFRANK, J
KOCH, P
HEINZ, U
机构：
[1] Institut für Theoretische Physik, Universität Regensburg, W-8400 Regensburg
来源：
PHYSICS LETTERS B | 1990年 / 252卷 / 02期
关键词：
D O I：
10.1016/0370-2693(90)90870-C
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The influence of resonance decays on hadronic momentum spectra is studied quantitatively within a simple thermodynamical model. We derive expressions for the rapidity and transverse momentum spectra of particles originating from two- and three-body decay of resonances with specified momentum distribution. We compare the results for a thermally and chemically equilibrated hadron gas without transverse expansion with data from the NA35 Collaboration for pion, kaon, proton and LAMDA p(T) spectra from 200 A GeV S+S collisions and find excellent agreement for T = 200 MeV and mu-b = 100-200 MeV.
引用
收藏
页码：256 / 264
页数：9
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