REACTIVE 2-BODY PART OF THE PION-NUCLEUS OPTICAL-POTENTIAL

被引：49

作者：

CHAI, J ^{[1
]}

RISKA, DO ^{[1
]}

机构：

[1] MICHIGAN STATE UNIV,HEAVY ION LAB,E LANSING,MI 48824

来源：

NUCLEAR PHYSICS A | 1979年 / 329卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0375-9474(79)90385-3

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：

We calculate the reactive component of the two-body contribution to the pion-nucleus optical potential from a two-nucleon pion absorption mechanism that predicts the total cross section and angular distributions for π+d → pp very well. At threshold the calculated absorptive parts explain most of the values obtained from pionic atom level widths, whereas the dispersive parts, which are very sensitive to wave function correlations are considerably more attractive than what the conventional phenomenological parameters would suggest. © 1979.

引用

页码：429 / 449

页数：21

共 31 条

[1] THRESHOLD PION ABSORPTION IN NUCLEI [J].