Quarkonium mass splittings in three-flavor lattice QCD

T. Burch, C. DeTar, M. Di Pierro, A. X. El-Khadra, E. D. Freeland, Steven Gottlieb, A. S. Kronfeld, L. Levkova, P. B. MacKenzie, J. N. Simone

Research output: Contribution to journalArticlepeer-review


We report on calculations of the charmonium and bottomonium spectrum in lattice QCD. We use ensembles of gauge fields with three flavors of sea quarks, simulated with the asqtad improved action for staggered fermions. For the heavy quarks we employ the Fermilab interpretation of the clover action for Wilson fermions. These calculations provide a test of lattice QCD, including the theory of discretization errors for heavy quarks. We provide, therefore, a careful discussion of the results in light of the heavy-quark effective Lagrangian. By and large, we find that the computed results are in agreement with experiment, once parametric and discretization errors are taken into account.

Original languageEnglish (US)
Article number034508
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
StatePublished - Feb 12 2010

ASJC Scopus subject areas

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


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