Drell-Hearn-Gerasimov Sum Rule for the Nucleon in the Large-N_c Limit
High Energy Physics - Phenomenology
2009-10-31 v1 Nuclear Theory
Abstract
We show that the Drell-Hearn-Gerasimov sum rule for the nucleon is entirely saturated by the \Delta resonance in the limit of a large number of colors, N_c \to \infty. Corrections are at relative order 1/N_c^2.
Cite
@article{arxiv.hep-ph/9905334,
title = {Drell-Hearn-Gerasimov Sum Rule for the Nucleon in the Large-N_c Limit},
author = {Thomas D. Cohen and Xiangdong Ji},
journal= {arXiv preprint arXiv:hep-ph/9905334},
year = {2009}
}
Comments
6 pages, latex, no figures