On the treatment of NN interaction effects in meson production in NN collisions

被引：74
作者：
Hanhart, C [1 ]
Nakayama, K
机构：
[1] Univ Bonn, Inst Theoret Kernphys, D-53115 Bonn, Germany
[2] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
[3] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[4] Univ Washington, INT, Seattle, WA 98195 USA
[5] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA
来源：
PHYSICS LETTERS B | 1999年 / 454卷 / 3-4期
关键词：
final state interaction; initial state interaction; meson production;
D O I：
10.1016/S0370-2693(99)00377-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We clarify under what circumstances the nucleon-nucleon final state interaction fixes the energy dependence of the total cross-section for the reaction NN-->NNx close to production threshold, where x can be any meson whose interaction with the nucleon is not too strong. It is shown that the results obtained from the procedure used recently by several authors to include the final state interaction in the reactions under discussion should be interpreted with caution. In addition, we give a formula that allows one to estimate the effect of the initial state interaction for the production of heavy mesons. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：176 / 180
页数：5
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