Pion electroproduction in a nonrelativistic theory

Details Pion electroproduction in a nonrelativistic theory Pion electroproduction in a nonrelativistic theory

2010-06-30

arxiv.org/abs/1007.0031v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure

Scientific paper

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.

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