QCD Isospin Breaking in Meson Masses, Decay Constants and Quark Mass Ratios
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
The procedure to calculate masses and matrix-elements in the presence of mixing of the basis states is explained in detail. We then apply this procedure to the two-loop calculation in Chiral Perturbation Theory of pseudoscalar masses and decay constants including quark mass isospin breaking. These results are used to update our analysis of done previously and obtain a value of in addition to values for the low-energy-constants .
Cite
@article{arxiv.hep-ph/0101127,
title = {QCD Isospin Breaking in Meson Masses, Decay Constants and Quark Mass Ratios},
author = {G. Amoros and J. Bijnens and P. Talavera},
journal= {arXiv preprint arXiv:hep-ph/0101127},
year = {2009}
}
Comments
22 pages, uses axodraw.sty