Progress on four flavor QCD with the HISQ action

A. Bazavov; C. Bernard; C. DeTar; W. Freeman; Steven Gottlie; U. M. Heller; J. E. Hetrick; J. Laiho; L. Levkova; J. Osborn; R. Sugar; D. Toussaint; R. S. Van De Wateri

Progress on four flavor QCD with the HISQ action

A. Bazavov, C. Bernard, C. DeTar, W. Freeman, Steven Gottlie, U. M. Heller, J. E. Hetrick, J. Laiho, L. Levkova, J. Osborn, R. Sugar, D. Toussaint, R. S. Van De Wateri

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

We describe recent progress on generation of gauge configurations using the Highly Improved Staggered Quark (HISQ) action that was designed by the HPQCD/UKQCD collaboration. The HISQ action requires two levels of smearing with a reunitarization of the links before the second smearing. We describe how we deal with the occurrence of occasional large forces arising from the reunitarization step. The MILC collaboration is currently generating ensembles with approximate lattice spacings of 0.15, 0.12, 0.09, and 0.06 fm, with the strange and charm quark masses close to their physical values and the mass of the light quarks ml set to 0.2ms. We present recent results for pion taste splittings, light hadron masses, the static potential, the c dispersion relation and the topological susceptibility.

Original language	English (US)
Journal	Proceedings of Science
Volume	91
State	Published - 2009
Externally published	Yes
Event	27th International Symposium on Lattice Field Theory, LAT 2009 - Beijing, China Duration: Jul 26 2009 → Jul 31 2009

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title = "Progress on four flavor QCD with the HISQ action",

abstract = "We describe recent progress on generation of gauge configurations using the Highly Improved Staggered Quark (HISQ) action that was designed by the HPQCD/UKQCD collaboration. The HISQ action requires two levels of smearing with a reunitarization of the links before the second smearing. We describe how we deal with the occurrence of occasional large forces arising from the reunitarization step. The MILC collaboration is currently generating ensembles with approximate lattice spacings of 0.15, 0.12, 0.09, and 0.06 fm, with the strange and charm quark masses close to their physical values and the mass of the light quarks ml set to 0.2ms. We present recent results for pion taste splittings, light hadron masses, the static potential, the c dispersion relation and the topological susceptibility.",

author = "A. Bazavov and C. Bernard and C. DeTar and W. Freeman and Steven Gottlie and Heller, {U. M.} and Hetrick, {J. E.} and J. Laiho and L. Levkova and J. Osborn and R. Sugar and D. Toussaint and {Van De Wateri}, {R. S.}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 27th International Symposium on Lattice Field Theory, LAT 2009 ; Conference date: 26-07-2009 Through 31-07-2009",

year = "2009",

language = "English (US)",

volume = "91",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - Progress on four flavor QCD with the HISQ action

AU - Bazavov, A.

AU - Bernard, C.

AU - DeTar, C.

AU - Freeman, W.

AU - Gottlie, Steven

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Laiho, J.

AU - Levkova, L.

AU - Osborn, J.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van De Wateri, R. S.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2009

Y1 - 2009

N2 - We describe recent progress on generation of gauge configurations using the Highly Improved Staggered Quark (HISQ) action that was designed by the HPQCD/UKQCD collaboration. The HISQ action requires two levels of smearing with a reunitarization of the links before the second smearing. We describe how we deal with the occurrence of occasional large forces arising from the reunitarization step. The MILC collaboration is currently generating ensembles with approximate lattice spacings of 0.15, 0.12, 0.09, and 0.06 fm, with the strange and charm quark masses close to their physical values and the mass of the light quarks ml set to 0.2ms. We present recent results for pion taste splittings, light hadron masses, the static potential, the c dispersion relation and the topological susceptibility.

AB - We describe recent progress on generation of gauge configurations using the Highly Improved Staggered Quark (HISQ) action that was designed by the HPQCD/UKQCD collaboration. The HISQ action requires two levels of smearing with a reunitarization of the links before the second smearing. We describe how we deal with the occurrence of occasional large forces arising from the reunitarization step. The MILC collaboration is currently generating ensembles with approximate lattice spacings of 0.15, 0.12, 0.09, and 0.06 fm, with the strange and charm quark masses close to their physical values and the mass of the light quarks ml set to 0.2ms. We present recent results for pion taste splittings, light hadron masses, the static potential, the c dispersion relation and the topological susceptibility.

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UR - http://www.scopus.com/inward/citedby.url?scp=85055251539&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85055251539

SN - 1824-8039

VL - 91

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 27th International Symposium on Lattice Field Theory, LAT 2009

Y2 - 26 July 2009 through 31 July 2009

ER -

Progress on four flavor QCD with the HISQ action

Abstract

ASJC Scopus subject areas

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