Properties of light pseudoscalars from lattice QCD with HISQ ensembles

A. Bazavov; R. S. Van de Water; C. Bernard; M. Lightman; C. DeTar; L. Levkova; M. Oktay; W. Freeman; J. Kim; D. Toussaint; Steven Gottlieb; U. M. Heller; J. E. Hetrick; J. Laiho; J. Osborn; R. L. Sugar

Properties of light pseudoscalars from lattice QCD with HISQ ensembles

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

Physics

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

2 Scopus citations

Abstract

We fit lattice-QCD data for light-pseudoscalar masses and decay constants, from HISQ configurations generated by MILC, to SU(3) staggered chiral perturbation theory. At present such fits have rather high values of χ²/d.o.f., possibly due to the lack of ensembles with lighter-than-physical sea strange-quark masses. We propose solutions to this problem for future work. We also perform simple linear interpolations near the physical point on two ensembles with different lattice spacings, and obtain the preliminary result (f_K/f_π)^phys = 1.1872(41) in the continuum limit.

Original language	English (US)
Journal	Proceedings of Science
Volume	139
State	Published - 2011
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: Jul 10 2011 → Jul 16 2011

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title = "Properties of light pseudoscalars from lattice QCD with HISQ ensembles",

abstract = "We fit lattice-QCD data for light-pseudoscalar masses and decay constants, from HISQ configurations generated by MILC, to SU(3) staggered chiral perturbation theory. At present such fits have rather high values of χ2/d.o.f., possibly due to the lack of ensembles with lighter-than-physical sea strange-quark masses. We propose solutions to this problem for future work. We also perform simple linear interpolations near the physical point on two ensembles with different lattice spacings, and obtain the preliminary result (fK/fπ)phys = 1.1872(41) in the continuum limit.",

author = "A. Bazavov and {Van de Water}, {R. S.} and C. Bernard and M. Lightman and C. DeTar and L. Levkova and M. Oktay and W. Freeman and J. Kim and D. Toussaint and Steven Gottlieb and Heller, {U. M.} and Hetrick, {J. E.} and J. Laiho and J. Osborn and Sugar, {R. L.}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

year = "2011",

language = "English (US)",

volume = "139",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - Properties of light pseudoscalars from lattice QCD with HISQ ensembles

AU - Bazavov, A.

AU - Van de Water, R. S.

AU - Bernard, C.

AU - Lightman, M.

AU - DeTar, C.

AU - Levkova, L.

AU - Oktay, M.

AU - Freeman, W.

AU - Kim, J.

AU - Toussaint, D.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Laiho, J.

AU - Osborn, J.

AU - Sugar, R. L.

PY - 2011

Y1 - 2011

N2 - We fit lattice-QCD data for light-pseudoscalar masses and decay constants, from HISQ configurations generated by MILC, to SU(3) staggered chiral perturbation theory. At present such fits have rather high values of χ2/d.o.f., possibly due to the lack of ensembles with lighter-than-physical sea strange-quark masses. We propose solutions to this problem for future work. We also perform simple linear interpolations near the physical point on two ensembles with different lattice spacings, and obtain the preliminary result (fK/fπ)phys = 1.1872(41) in the continuum limit.

AB - We fit lattice-QCD data for light-pseudoscalar masses and decay constants, from HISQ configurations generated by MILC, to SU(3) staggered chiral perturbation theory. At present such fits have rather high values of χ2/d.o.f., possibly due to the lack of ensembles with lighter-than-physical sea strange-quark masses. We propose solutions to this problem for future work. We also perform simple linear interpolations near the physical point on two ensembles with different lattice spacings, and obtain the preliminary result (fK/fπ)phys = 1.1872(41) in the continuum limit.

UR - http://www.scopus.com/inward/record.url?scp=85013298583&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85013298583&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85013298583

SN - 1824-8039

VL - 139

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011

Y2 - 10 July 2011 through 16 July 2011

ER -

Properties of light pseudoscalars from lattice QCD with HISQ ensembles

Abstract

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