Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses

Autor:	Basak, S., Bazavov, A., Bernard, C., DeTar, C., Freeland, E., Freeman, W., Foley, J., Gottlieb, Steven, Heller, U. M., Hetrick, J. E., Laiho, J., Levkova, L., Oktay, M., Osborn, J., Sugar, R. L., Torok, A., Toussaint, D., Van de Water, R. S., Zhou, R.
Rok vydání:	2012
Předmět:	High Energy Physics - Lattice
Druh dokumentu:	Working Paper
Popis:	We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit. Comment: 7 pages, 3 figures, 2 tables. Proceedings of the 30th International Symposium on Lattice Field Theory - Lattice 2012; June 24-29, 2012; Cairns, Australia. Expanded acknowledgements
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1210.8157 Zobrazit plný text záznamu View this record from Arxiv