Strange baryon production in heavy ion collisions

被引：17
|
作者：
Capella, A
Kaidalov, A
Akil, AK
Merino, C
Van, JTT
机构：
[1] Laboratoire de Physique Théorique et Hautes Energies, Université de Paris XI, F-91405 Orsay Cedex
[2] ITEP, 117 259 Moscow
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1996年 / 70卷 / 03期
关键词：
D O I：
10.1007/s002880050128
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 rapidity distribution of Lambda and <(Lambda)over bar> produced in nucleus-nucleus collisions at CERN energies is studied in the framework of an independent string model - with quark-antiquark as well as diquark-antidiquark pairs in the nucleon sea. It is shown that, besides the Lambda-<(Lambda)over bar> pair production resulting from the fragmentation of sea diquarks, final state interactions of co-moving secondaries pi + N --> K + Lambda and pi + (N) over bar --> K + <(Lambda)over bar> are needed in order to reproduce the data, Predictions for Pb-Pb collisions are presented.
引用
收藏
页码：507 / 516
页数：10
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