The off-Shell Electromagnetic Vertex of the Nucleon in Chiral Perturbation Theory

Preprint

10 May 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9305233

Abstract

We study the electromagnetic vertex of a nucleon in next-to-leading order chiral perturbation theory (CPT). We consider the case where one of the nucleons at the $\gamma$NN vertex is off its mass shell. We define relevant measures for the off-shell dependence in the limited kinematical range allowed, and analyze their expansion in the pion mass. The leading nonanalytic contributions are calculated to estimate their size.

Keywords

ELECTROMAGNETIC VERTEX
CHIRAL PERTURBATION
PERTURBATION THEORY
KINEMATICAL
NUCLEONS
THEORY
VERTEX

All Related Versions

Version 1, 1993-05-10, ArXiv
Version 1, 1994-09-13, ArXiv (Unconfirmed version)
Published version: Nuclear Physics A, 563 (4), 539.

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