Electromagnetic effects on the light pseudoscalar mesons and determination of mu=md

S. Basak, A. Bazavov, C. Bernard, C. Detar, E. Freeland, J. Foley, Steven Gottlieb, U. M. Heller, John W Laiho, L. Levkovad, J. Osborni, R. L. Sugar, A. Torok, D. Toussaint, R. S. Van De Water, R. Zhou

Research output: Contribution to journalArticle

Abstract

The MILC Collaboration has completed production running of electromagnetic effects on light mesons using asqtad improved staggered quarks. In these calculations, we use quenched photons in the noncompact formalism. We study four lattice spacings from ≈0:12 fm to ≈ 0:045 fm. To study finite-volume effects, we used six spatial lattice sizes L=a = 12, 16, 20, 28, 40, and 48, at a≈0:12 fm. We update our preliminary values for the correction to Dashen's theorem (e) and the quark-mass ratio mu=md.

Original languageEnglish (US)
Article number259
JournalUnknown Journal
Volume14-18-July-2015
StatePublished - 2015

ASJC Scopus subject areas

  • General

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    Basak, S., Bazavov, A., Bernard, C., Detar, C., Freeland, E., Foley, J., Gottlieb, S., Heller, U. M., Laiho, J. W., Levkovad, L., Osborni, J., Sugar, R. L., Torok, A., Toussaint, D., Van De Water, R. S., & Zhou, R. (2015). Electromagnetic effects on the light pseudoscalar mesons and determination of mu=md. Unknown Journal, 14-18-July-2015, [259].