STRANGENESS PRODUCTION IN PROTON AND HEAVY-ION COLLISIONS AT 14.6A GEV

被引：52

作者：

AMELIN, NS ^{[1
]}

STAUBO, EF ^{[1
]}

CSERNAI, LP ^{[1
]}

TONEEV, VD ^{[1
]}

GUDIMA, KK ^{[1
]}

机构：

[1] DUBNA JOINT NUCL RES INST, THEORET PHYS LAB, DUBNA, RUSSIA

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.44.1541

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：

Rapidity and transverse momentum distributions of pi-, K+/-, and p have been computed for p + Be, p + Au, and Si + Au collisions at 14.6A GeV with the Monte Carlo quark-gluon string model (QGSM). The calculations are compared to experimental data at the same energy. The QGSM reproduced the shapes and approximately absolute values of the minimum bias rapidity distribution for all particles except the pions in p + Au data. The model also reproduced the rapidity distribution for protons and K+ in the central Si + Au collisions. However, we overestimated the enhancement at low p(t) for pions and negative kaons. As a consequence, the QGSM also produces an excess of pions and K- in the rapidity distribution below y = 2, and predicted an overall K+/pi+ enhancement by a factor of 1.4-1.9 as compared to pp data, instead of a factor of 4 as obtained by the E802 Collaboration.

引用

页码：1541 / 1547

页数：7