Pion electroproduction in a nonrelativistic theory

被引：2
作者：
Fuhrer, Andreas [1 ]
机构：
[1] Univ Calif San Diego, La Jolla, CA 92093 USA
来源：
PHYSICS LETTERS B | 2010年 / 692卷 / 02期
关键词：
Chiral symmetries; Meson production; Pion-baryon interactions; CHIRAL PERTURBATION-THEORY; LOW-ENERGY THEOREMS; ISOSPIN-BREAKING; ONE-LOOP; THRESHOLD; DECAYS; CUSPS;
D O I：
10.1016/j.physletb.2010.07.029
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A nonrelativistic effective theory to describe the electroproduction reaction of a single pion on the nucleon at leading order in the electromagnetic coupling is constructed. The framework is tailored to accurately describe the cusp generated by the pion and nucleon mass differences. The S- and P-wave multipole amplitudes at two loops for all four reaction channels are provided. As an application, a new low energy theorem is discussed. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：130 / 135
页数：6
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