MANY-BODY APPROACH TO LOW-ENERGY PION NUCLEUS SCATTERING

被引：91

作者：

NIEVES, J

OSET, E

GARCIARECIO, C

机构：

[1] UNIV VALENCIA,CSIC,FAC FIS,CTR MIXTO,IFIC,VALENCIA,SPAIN

[2] UNIV GRANADA,DEPT FIS MODERNA,E-10871 GRANADA,SPAIN

来源：

NUCLEAR PHYSICS A | 1993年 / 554卷 / 04期

关键词：

D O I：

10.1016/0375-9474(93)90246-T

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 have extrapolated for low-energy pions (T(pi) = 0-50 MeV) the results for the pion-nucleus optical potential previously developed for pionic atoms. The evaluation is done using microscopic many-body techniques which allow us to separate the different contributions to the imaginary part of the potential and relate them to the different reaction channels: quasielastic and absorption. Elastic differential, reaction, absorption and quasielastic cross sections are evaluated for different nuclei and energies and contrasted with experiments. The agreement with data for the different channels, energies and nuclei is rather good with some isolated discrepancies.

引用

页码：554 / 579

页数：26

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