Testing m(up)=0 on the Lattice
High Energy Physics - Lattice
2010-02-03 v3 High Energy Physics - Phenomenology
Abstract
A massless up quark is an intriguing solution to the strong CP problem. We discuss how lattice computations can be used in conjunction with chiral perturbation theory to address the consistency of with the observed hadron spectrum and interactions. It is not necessary to simulate very light quarks-three flavor partially quenched computations with comparable sea and valence quark masses on the order of the strange quark mass could suffice.
Cite
@article{arxiv.hep-lat/9909091,
title = {Testing m(up)=0 on the Lattice},
author = {Andrew G. Cohen and David B. Kaplan and Ann E. Nelson},
journal= {arXiv preprint arXiv:hep-lat/9909091},
year = {2010}
}
Comments
20 pages, corrected equations, added refs