Baryon Chiral Perturbation Theory in the 1/N Expansion
High Energy Physics - Phenomenology
2017-08-23 v1
Abstract
The chiral Lagrangian for baryons is formulated in an expansion in 1/N_c. The chiral Lagrangian implements the contracted spin-flavor symmetry of large-N_c baryons as well as nonet symmetry of the leading planar diagrams. Large-N_c consistency conditions ensure that chiral loop corrections are suppressed in 1/N_c through exact cancellation of chiral loop graphs to fixed orders in 1/N_c. Application of 1/N_c baryon chiral perturbation theory to the flavor-27 baryon mass splittings and the baryon axial vector currents are considered as examples.
Keywords
Cite
@article{arxiv.hep-ph/0201246,
title = {Baryon Chiral Perturbation Theory in the 1/N Expansion},
author = {E. Jenkins},
journal= {arXiv preprint arXiv:hep-ph/0201246},
year = {2017}
}
Comments
10 pages, Invited talk, The Phenomenology of Large-N_c QCD, to be published Proceedings of the Institute of Nuclear Theory