Electromagnetic nucleon-delta transition in the perturbative chiral quark model

Preprint

3 June 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0304033

Abstract

We apply the perturbative chiral quark model to the gamma N -> Delta transition. The four momentum dependence of the respective transverse helicity amplitudes A(1/2) and A(3/2) is determined at one loop in the pseudoscalar Goldstone boson fluctuations. Inclusion of excited states in the quark propagator is shown to result in a reasonable description of the experimental values for the helicity amplitudes at the real photon point.

Keywords

ELECTROMAGNETIC NUCLEON
PERTURBATIVE CHIRAL
DELTA TRANSITION
NUCLEON DELTA
CHIRAL QUARK
QUARK MODEL

All Related Versions

Version 1, 2003-04-03, ArXiv
Version 2, 2003-06-03, ArXiv
Published version: Physical Review C, 68 (1), 015205.

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