THE REACTION PP-]PP-PI(0) NEAR-THRESHOLD

被引：83

作者：

HANHART, C

HAIDENBAUER, J

REUBER, A

SCHUTZ, C

SPETH, J

机构：

[1] Institt für Kernphysik, Forschungszentrum Jülich GmbH

来源：

PHYSICS LETTERS B | 1995年 / 358卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)00998-Z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a momentum-space calculation of the reaction pp --> pp pi(0) near threshold. Direct production and pion rescattering are taken into account. For the latter a T-matrix obtained from a microscopic model of the pi N interaction is employed. The effects of some approximations commonly used in studies of pp --> pp pi(0) are discussed. We find that those approximations overestimate the cross section and also modify its energy dependence. We obtain a significant contribution from rescattering, but not nearly enough to describe the data.

引用

页码：21 / 26

页数：6

共 24 条

[1] PION-NUCLEON PARTIAL-WAVE ANALYSIS TO 1100 MEV [J].