Symanzik flow on HISQ ensembles

A. Bazavov, C. Bernard, N. Brown, C. Detar, J. Foley, Steven Gottlieb, U. M. Heller, J. E. Hetrick, J. Laiho, L. Levkova, M. Oktay, R. L. Sugar, William D Toussaint, R. S. Van De Water, R. Zhou

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Abstract

We report on a scale determination with gradient-flow techniques on the Nf = 2+1+1 HISQ ensembles generated by the MILC collaboration. The lattice scale w0=a, originally proposed by the BMW collaboration, is computed using Symanzik flow at four lattice spacings ranging from 0.15 to 0.06 fm. With a Taylor series ansatz, the results are simultaneously extrapolated to the continuum and interpolated to physical quark masses. We give a preliminary determination of the scale w0 in physical units, along with associated systematic errors, and compare with results from other groups. We also present a first estimate of autocorrelation lengths as a function of flowtime for these ensembles.

Original languageEnglish (US)
Article number269
JournalProceedings of Science
Volume29-July-2013
StatePublished - 2013

ASJC Scopus subject areas

  • General

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    Bazavov, A., Bernard, C., Brown, N., Detar, C., Foley, J., Gottlieb, S., Heller, U. M., Hetrick, J. E., Laiho, J., Levkova, L., Oktay, M., Sugar, R. L., Toussaint, W. D., Van De Water, R. S., & Zhou, R. (2013). Symanzik flow on HISQ ensembles. Proceedings of Science, 29-July-2013, [269].