3-PSEUDOSCALAR PHOTON INTERACTIONS IN CHIRAL PERTURBATION-THEORY

被引：78

作者：

BIJNENS, J

BRAMON, A

CORNET, F

机构：

[1] UNIV AUTONOMA BARCELONA,FIS TEOR GRP,E-08193 BARCELONA,SPAIN

[2] UNIV GRANADA,DEPT FIS TEOR & COSMOS,E-18071 GRANADA,SPAIN

来源：

PHYSICS LETTERS B | 1990年 / 237卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(90)91212-T

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have calculated the next to leading corrections to the processes γπ- → π0π- and η → π+π-γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p6) lagrangian. The finite parts of the coefficients of the O(p6) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data. © 1990.

引用

页码：488 / 494

页数：7

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