First determination of the strange and light quark masses from full lattice QCD

C. Aubin, C. Bernard, C. T.H. Davies, C. DeTar, Steven A. Gottlieb, A. Gray, E. B. Gregory, J. Hein, U. M. Heller, J. E. Hetrick, G. P. Lepage, Q. Mason, J. Osborn, J. Shigemitsu, R. Sugar, D. Toussaint, H. Trottier, M. Wingate

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

We compute the strange quark mass [Formula Presented] and the average of the u and d quark masses [Formula Presented] using full lattice QCD with three dynamical quarks combined with the experimental values for the [Formula Presented] and K masses. The simulations have degenerate u and d quarks with masses [Formula Presented] as low as [Formula Presented] and two different values of the lattice spacing. The bare lattice quark masses obtained are converted to the [Formula Presented] scheme using perturbation theory at [Formula Presented] Our results are [Formula Presented] [Formula Presented] MeV, and [Formula Presented] where the errors are from statistics, simulation, perturbation theory, and electromagnetic effects, respectively.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume70
Issue number3
DOIs
StatePublished - 2004

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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