EVOLUTION OF PION PHASE-SPACE DENSITY AND BOSE-ENHANCEMENT EFFECTS IN HIGH-ENERGY HEAVY-ION COLLISIONS

被引：5

作者：

MISHUSTIN, IN ^{[1
]}

SATAROV, LM ^{[1
]}

MARUHN, J ^{[1
]}

STOCKER, H ^{[1
]}

GREINER, W ^{[1
]}

机构：

[1] JW GOETHE UNIV,INST THEORET PHYS,W-6000 FRANKFURT,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1992年 / 342卷 / 03期

关键词：

D O I：

10.1007/BF01291515

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：

The evolution of the pion phase-space density in the ultrarelativistic heavy-ion collision is investigated on the basis of an analytical solution of the kinetic equation. The rate of pion production is treated as a superposition of binary collisions of the projectile and target nucleons. It is calculated in accordance with the experimental NN --> pi-X cross section, neglecting the deceleration of nuclei during their interpenetration. Very large occupation numbers of the low p(T)-pions in the central rapidity region are predicted for typical heavy-ion collisions at Brookhaven and CERN energies. The role of the Bose-enhancement of pion production is discussed. It is shown that this effect may be essentially suppressed due to the finite formation time of pions.

引用

页码：309 / 317

页数：9

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