Master formula approach to broken chiral U(3)xU(3) symmetry
High Energy Physics - Phenomenology
2010-04-22 v3 Nuclear Theory
Abstract
The master formula approach to chiral symmetry breaking proposed by Yamagishi and Zahed is extended to the U_R(3)xU_L(3) group, in which effects of the U_A(1) anomaly and the flavor symmetry breaking m_u \not= m_d \not= m_s are properly contained. New identities for the gluon topological susceptibility and pi^0, eta, eta' -> gamma^(*) gamma^(*) decays are derived, which exactly embody the consequence from broken chiral symmetry in QCD without relying on any unphysical limit.
Cite
@article{arxiv.0909.1606,
title = {Master formula approach to broken chiral U(3)xU(3) symmetry},
author = {Hiroyuki Kamano},
journal= {arXiv preprint arXiv:0909.1606},
year = {2010}
}
Comments
Version to appear in PRD, 25 pages