ROLE OF HEAVY MESON-EXCHANGE IN NEAR-THRESHOLD NN -] D-PI

被引：27

作者：

HOROWITZ, CJ ^{[1
]}

机构：

[1] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA

来源：

PHYSICAL REVIEW C | 1993年 / 48卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.48.2920

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：

The total cross section for NN --> dpi very near threshold is calculated in a simple distorted wave impulse approximation including one-body, pion rescattering, and sigma and omega meson exchange current (MEC) contributions. Calculations with MEC are in good agreement with recent TRIUMF measurements while calculations without MEC are significantly smaller. Thus the MEC mechanism, which was proposed to explain a large enhancement in the pp --> pppi0 cross section, is consistent with NN --> dpi data.

引用

页码：2920 / 2925

页数：6

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