CONVENTIONAL AND LESS-CONVENTIONAL MEDIUM EFFECTS IN K+ SCATTERING FROM NUCLEI AT INTERMEDIATE ENERGY

被引：12

作者：

LABARSOUQUE, J

机构：

[1] Laboratoire de Physique Théorique Unité associée au CNRS 764. Postal address: Laboratoire de Physique Théorique, Université de Bordeaux I, Rue du Solarium, 33170 Gradignan, France., Bordeaux

来源：

NUCLEAR PHYSICS A | 1990年 / 506卷 / 3-4期

关键词：

D O I：

10.1016/0375-9474(90)90202-W

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 K+-nucleon effective interaction in nuclear matter is derived using the Brueckner theory from a K+-nucleon potential built partly from the constituent quark model, partly in a phenomenological way. The influence of the conventional medium effects arising from the renormalization of the interaction on the K+-nucleus optical potential and on the elastic differential cross section at 800MeV/c is analyzed. Density-dependent variations of the effective nucleon mass are also introduced. These less-conventional medium effects lead to more important modifications of the K+-nucleus differential cross section and improve significantly the agreement with the experimental data. © 1990.

引用

页码：539 / 552

页数：14