CHIRAL SYMMETRY AND THE AXIAL CURRENT IN NUCLEAR-MATTER

被引：19

作者：

BENTZ, W ^{[1
]}

ARIMA, A ^{[1
]}

BAIER, H ^{[1
]}

机构：

[1] UNIV VIENNA,INST RADIUMFORSCH & KERNSPHYS,A-1090 VIENNA,AUSTRIA

来源：

ANNALS OF PHYSICS | 1990年 / 200卷 / 01期

关键词：

D O I：

10.1016/0003-4916(90)90244-I

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The renormalization of the axial current of a nucleon bound in nuclear matter is investigated by using a chiral invariant relativistic field theory. The role of PCAC in the medium is discussed generally and explored in detailed model calculations. Relativistic corrections to the effective axial coupling constants for Gamow-Teller and weak 0--0+ transitions are discussed and compared to traditional effects. The renormalization of the effective pseudoscalar form factor is also calculated. The behaviour of the axial current near the chiral phase transition point is investigated in detail. © 1990.

引用

页码：127 / 189

页数：63

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