AXIAL-CHARGE TRANSITIONS - RELATIVISTIC STUDY OF ONE-BODY AND 2-BODY CONTRIBUTIONS

被引：0

作者：

IZQUIERDO, ED ^{[1
]}

机构：

[1] COMIS NACL ENERGIA ATOM,DEPT FIS,RA-1425 BUENOS AIRES,DF,ARGENTINA

来源：

CHINESE JOURNAL OF PHYSICS | 1994年 / 32卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two recent experiments which isolate the axial charge, both in the nuclear medium and in free space, appear to necessitate the presence of heavy scalar mesons. In this contribution we present both experiments and their possible explanation. Heavy scalar mesons are a feature of relativistic models. In the framework of quantum hadrodynamics we analyze the one-body contribution, the response of the core and the effects due to meson exchange currents for the experiment with medium dependence.

引用

页码：1425 / 1435

页数：11

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