Electromagnetic Corrections in Staggered Chiral Perturbation Theory
High Energy Physics - Lattice
2010-11-18 v1
Abstract
To reduce errors in light-quark mass determinations, it is now necessary to consider electromagnetic contributions to light-meson masses. Calculations using staggered quarks and quenched photons are currently underway. Suitably-extended chiral perturbation theory is necessary to extrapolate the lattice data to the physical limit. Here we give (preliminary) results for light-meson masses using staggered chiral perturbation theory including electromagnetism, and discuss the extent to which quenched-photon simulations can improve quark-mass calculations.
Cite
@article{arxiv.1011.3994,
title = {Electromagnetic Corrections in Staggered Chiral Perturbation Theory},
author = {C. Bernard and E. D. Freeland},
journal= {arXiv preprint arXiv:1011.3994},
year = {2010}
}
Comments
7 pages, 2 figures, presented at Lattice 2010, June 14-19, 2010, Villasimius, Italy