Near threshold meson production in nucleon-nucleon collisions

被引：0

作者：

Haidenbauer, J ^{[1
]}

Baru, V ^{[1
]}

Hanhart, C ^{[1
]}

Speth, J ^{[1
]}

机构：

[1] Forschungszentrum Julich GmbH, Inst Kernphys, D-52425 Julich, Germany

来源：

NUCLEAR DYNAMICS: FROM QUARKS TO NUCLEI | 2003年 / 15卷

关键词：

D O I：

暂无

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：

A model calculation for pion production in nucleon-nucleon collisions is presented. Direct production, pion re-scattering and contributions from pair diagrams are taken into account. The amplitudes for the elementary processes are based on well established microscopic models of nucleon-nucleon and pion-nucleon scattering. The comparison with experiments focuses on recently measured polarization observables. Furthermore, results of a study of the reaction NN --> NNeta are presented, performed in the same spirit and the same framework as pion production. Reasonable agreement with available near-threshold cross section data for the reactions pp --> ppeta, pn --> pneta, and pn --> deta is found.

引用

页码：37 / 48

页数：12

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