Self-consistent description of Lambda hypernuclei in the quark-meson coupling model

被引：56
|
作者：
Tsushima, K
Saito, K
Thomas, AW
机构：
[1] UNIV ADELAIDE,SPECIAL RES CTR SUBATOM STRUCT MATTER,ADELAIDE,SA 5005,AUSTRALIA
[2] TOHOKU COLL PHARMACEUT SCI,DEPT PHYS,SENDAI,MIYAGI 981,JAPAN
来源：
PHYSICS LETTERS B | 1997年 / 411卷 / 1-2期
基金：
澳大利亚研究理事会; 日本学术振兴会;
关键词：
quark-meson coupling; Lambda hypernuclei; spin-orbit force; Lambda-nucleus potential; relativistic mean fields; effective mass;
D O I：
10.1016/S0370-2693(97)00944-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The quark-meson coupling (QMC) model, which has been successfully used to describe the properties of both finite nuclei and infinite nuclear matter, is applied to a study of Lambda hypernuclei. With the assumption that the (self-consistent) exchanged scalar, and vector, mesons couple only to the u and d quarks, a very weak spin-orbit force in the Lambda-nucleus interaction is achieved automatically. This is a direct consequence of the SU(6) quark model wave function of the Lambda used in the QMC model. Possible implications and extensions of the present investigation are also discussed. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：9 / 18
页数：10
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