@article{46d16102bd7f4a84b5753f2bc44c1e8a,
title = "Gradient flow analysis on MILC HISQ ensembles",
abstract = "We report on a preliminary scale determination with gradient-flow techniques on the Nf = 2+1 + 1 HISQ ensembles generated by the MILC collaboration. The ensembles include four lattice spacings, ranging from 0.15 to 0.06 fm, and both physical and unphysical values of the quark masses. The scales √t0/a and w0/a are computed using Symanzik flow and the cloverleaf definition of (E) on each ensemble. Then both scales and the meson masses aMπ and aMK are adjusted for mistunings in the charm mass. Using a combination of continuum chiral perturbation theory and a Taylor series ansatz in the lattice spacing, the results are simultaneously extrapolated to the continuum and interpolated to physical quark masses. Our preliminary results are √t0 = 0.1422(7) fm and w0 = 0.1732(10) fm. We also find the continuum mass-dependence of w0.",
author = "{MILC Collaboration} and A. Bazavov and C. Bernard and N. Brown and C. Detar and J. Foley and Steven Gottlieb and Heller, {U. M.} and Hetrick, {J. E.} and J. Komijani and J. Laiho and L. Levkova and M. Oktay and Sugar, {R. L.} and D. Toussaint and {Van De Water}, {R. S.} and R. Zhou",
note = "Funding Information: This work was supported by the U.S. Department of Energy and the National Science Foundation. Computations for the calculation of gradient flow were carried out with resources provided by the Texas Advanced Computing Center (TACC). The HISQ gauge configurations were generated with resources provided by the Argonne Leadership Computing Facility, the Blue Waters Project at the National Center for Supercomputing Applications (NCSA), the National Energy Resources Supercomputing Center (NERSC), the National Institute for Computational Sciences (NICS), TACC, the National Center for Atmospheric Research (UCAR), and the USQCD facilities at Fermilab, under grants from the DOE and NSF. Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 32nd International Symposium on Lattice Field Theory, LATTICE 2014 ; Conference date: 23-06-2014 Through 28-06-2014",
year = "2014",
language = "English (US)",
volume = "Part F130500",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",
}