Quark masses in two-flavor QCD
High Energy Physics - Phenomenology
2011-10-20 v1 High Energy Physics - Lattice
Abstract
Considered as a function of the quark mases, two-flavor QCD depends on three parameters, including one that is CP violating. As the masses vary to unphysical values, regions of both first- and second-order phase transitions are expected. For non-degenerate quarks, non-perturbative effects leave individual quark mass ratios with a renormalization scheme dependence. This complicates matching lattice results with perturbative schemes and clarifies the tautology with attacking the strong CP problem via a vanishing up quark mass.
Cite
@article{arxiv.1110.4074,
title = {Quark masses in two-flavor QCD},
author = {Michael Creutz},
journal= {arXiv preprint arXiv:1110.4074},
year = {2011}
}
Comments
10 pages, 6 figures. Contribution to the International Workshop on QCD Green's Functions, Confinement and Phenomenology, 5-9 September 2011, Trento, Italy