PION DISPERSION-RELATION IN HOT PION MATTER

被引：4

作者：

CHANFRAY, G ^{[1
]}

DAVESNE, D ^{[1
]}

机构：

[1] UNIV LYON 1,F-69622 VILLEURBANNE,FRANCE

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1994年 / 349卷 / 01期

关键词：

D O I：

10.1007/BF01296335

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the modification of the pion propagation properties when it is embedded in hot pionic matter. We calculate the real part and the imaginary part of the pion self-energy in a scheme, analogous to the Bruckner-Hartree-Fock approximation used in nuclear physics, which allows to incorporate in a fully consistent way unitarity and Bose correlations at finite temperature. We discuss the consequences of the medium effects on the pion transverse momentum spectrum measured in ultra-relativistic heavy ion collisions and the so-called soft pion puzzle.

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页码：65 / 76

页数：12

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