High-Precision Lattice QCD Confronts Experiment

  • C. T.H. Davies
  • , E. Follana
  • , A. Gray
  • , G. P. Lepage
  • , Q. Mason
  • , M. Nobes
  • , J. Shigemitsu
  • , H. D. Trottier
  • , M. Wingate
  • , C. Aubin
  • , C. Bernard
  • , T. Burch
  • , C. DeTar
  • , Steven Gottlieb
  • , E. B. Gregory
  • , U. M. Heller
  • , J. E. Hetrick
  • , J. Osborn
  • , R. Sugar
  • , D. Toussaint
  • M. Di Pierro, A. El-Khadra, A. S. Kronfeld, P. B. Mackenzie, D. Menscher, J. Simone

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The recently developed Symanzik-improved staggered-quark discretization allows unquenched lattice-QCD simulations with much smaller (and more realistic) quark masses than previously possible. To test this formalism, we compare experiment with a variety of nonperturbative calculations in QCD drawn from a restricted set of “gold-plated” quantities. We find agreement to within statistical and systematic errors of [Formula presented] or less. We discuss the implications for phenomenology and, in particular, for heavy-quark physics.

Original languageEnglish (US)
Pages (from-to)5
Number of pages1
JournalPhysical review letters
Volume92
Issue number2
DOIs
StatePublished - 2004
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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