Anomalous mesonic interactions near a chiral phase transition

被引：41

作者：

Pisarski, RD

机构：

[1] Department of Physics, Brookhaven National Laboratory, Upton, NY

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.76.3084

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using constituent quarks coupled to a linear sigma model at nonzero temperature, I show that many anomalous mesonic amplitudes, such as pi(0) --> gamma gamma, vanish in a chirally symmetric phase. Processes which are allowed, such as pi(0) sigma --> gamma gamma, are computed to leading order in a loop expansion.

引用

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页码：3084 / 3087

页数：4

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