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

58 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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