Simulations with dynamical HISQ quarks

A. Bazavov, C. Bernard, C. DeTar, Walter Freeman, Steven Gottlieb, U. M. Heller, J. E. Hetrick, John W Laiho, L. Levkova, M. Oktay, J. Osborn, R. L. Sugar, D. Toussaint, R. S. Van De Water

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

We report on the status of a program of generating and using configurations with four flavors of dynamical quarks, using the HISQ action. We study the lattice spacing dependence of physical quantities in these simulations, using runs at several lattice spacings, but with the light quark mass held fixed at two tenths of the strange quark mass. We find that the lattice artifacts in the HISQ simulations are much smaller than those in the asqtad simulations at the same lattice spacings and quark masses. We also discuss methods for setting the scale, or assigning a lattice spacing to ensembles run at unphysical parameters.

Original languageEnglish (US)
JournalProceedings of Science
Volume105
StatePublished - Jan 1 2010
Externally publishedYes
Event28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy
Duration: Jun 14 2010Jun 19 2010

ASJC Scopus subject areas

  • General

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    Bazavov, A., Bernard, C., DeTar, C., Freeman, W., Gottlieb, S., Heller, U. M., Hetrick, J. E., Laiho, J. W., Levkova, L., Oktay, M., Osborn, J., Sugar, R. L., Toussaint, D., & Van De Water, R. S. (2010). Simulations with dynamical HISQ quarks. Proceedings of Science, 105.