Decay constants fB and fBs and quark masses mb and mc from HISQ simulations

J. Komijani; A. Bazavov; C. Bernard; N. Brambilla; N. Brown; C. DeTar; D. Du; A. X. El-Khadra; E. D. Freeland; E. Gámiz; Steven Gottlieb; U. M. Heller; A. S. Kronfeld; J. Laiho; P. B. Mackenzie; C. Monahan; Heechang Na; E. T. Neil; J. N. Simone; R. L. Sugar; D. Toussaint; A. Vairo; R. S. Van De Water

doi:10.22323/1.256.0294

Decay constants f_B and f_Bs and quark masses m_b and m_c from HISQ simulations

J. Komijani, A. Bazavov, C. Bernard, N. Brambilla, N. Brown, C. DeTar, D. Du, A. X. El-Khadra, E. D. Freeland, E. Gámiz, Steven Gottlieb, U. M. Heller, A. S. Kronfeld, J. Laiho, P. B. Mackenzie, C. Monahan, Heechang Na, E. T. Neil, J. N. Simone, R. L. SugarD. Toussaint, A. Vairo, R. S. Van De Water

Physics

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

Abstract

We present a progress report on our calculation of the decay constants fB and fBs from lattice- QCD simulations with highly-improved staggered quarks. Simulations are carried out with several heavy valence-quark masses on (2+1+1)-flavor ensembles that include charm sea quarks. We include data at six lattice spacings and several light sea-quark masses, including an approximately physical-mass ensemble at all but the smallest lattice spacing, 0.03 fm. This range of parameters provides excellent control of the continuum extrapolation to zero lattice spacing and of heavy-quark discretization errors. Finally, using the heavy-quark effective theory expansion we present a method of extracting from the same correlation functions the charm- and bottom-quark masses as well as some low-energy constants appearing in the heavy-quark expansion.

Original language	English (US)
Journal	Proceedings of Science
Volume	Part F128557
DOIs	https://doi.org/10.22323/1.256.0294
State	Published - 2016
Event	34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 - Southampton, United Kingdom Duration: Jul 24 2016 → Jul 30 2016

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Komijani, J., Bazavov, A., Bernard, C., Brambilla, N., Brown, N., DeTar, C., Du, D., El-Khadra, A. X., Freeland, E. D., Gámiz, E., Gottlieb, S., Heller, U. M., Kronfeld, A. S., Laiho, J., Mackenzie, P. B., Monahan, C., Na, H., Neil, E. T., Simone, J. N., ... Van De Water, R. S. (2016). Decay constants f_B and f_Bs and quark masses m_b and m_c from HISQ simulations. Proceedings of Science, Part F128557. https://doi.org/10.22323/1.256.0294

Komijani, J, Bazavov, A, Bernard, C, Brambilla, N, Brown, N, DeTar, C, Du, D, El-Khadra, AX, Freeland, ED, Gámiz, E, Gottlieb, S, Heller, UM, Kronfeld, AS, Laiho, J, Mackenzie, PB, Monahan, C, Na, H, Neil, ET, Simone, JN, Sugar, RL, Toussaint, D, Vairo, A & Van De Water, RS 2016, 'Decay constants f_B and f_Bs and quark masses m_b and m_c from HISQ simulations', Proceedings of Science, vol. Part F128557. https://doi.org/10.22323/1.256.0294

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title = "Decay constants fB and fBs and quark masses mb and mc from HISQ simulations",

abstract = "We present a progress report on our calculation of the decay constants fB and fBs from lattice- QCD simulations with highly-improved staggered quarks. Simulations are carried out with several heavy valence-quark masses on (2+1+1)-flavor ensembles that include charm sea quarks. We include data at six lattice spacings and several light sea-quark masses, including an approximately physical-mass ensemble at all but the smallest lattice spacing, 0.03 fm. This range of parameters provides excellent control of the continuum extrapolation to zero lattice spacing and of heavy-quark discretization errors. Finally, using the heavy-quark effective theory expansion we present a method of extracting from the same correlation functions the charm- and bottom-quark masses as well as some low-energy constants appearing in the heavy-quark expansion.",

author = "J. Komijani and A. Bazavov and C. Bernard and N. Brambilla and N. Brown and C. DeTar and D. Du and El-Khadra, {A. X.} and Freeland, {E. D.} and E. G{\'a}miz and Steven Gottlieb and Heller, {U. M.} and Kronfeld, {A. S.} and J. Laiho and Mackenzie, {P. B.} and C. Monahan and Heechang Na and Neil, {E. T.} and Simone, {J. N.} and Sugar, {R. L.} and D. Toussaint and A. Vairo and {Van De Water}, {R. S.}",

note = "Funding Information: Computations for this work were carried out with resources provided by the USQCD Collaboration; by the ALCF and NERSC, which are funded by the U.S. Department of Energy (DOE); and by NCAR, NCSA, NICS, TACC, and BlueWaters, which are funded through the U.S. National Science Foundation (NSF). Authors of this work were also supported in part through individual grants by the DOE and NSF (U.S); by MICINN and the Junta de Andaluc{\'i}a (Spain); by the European Commission; and by the German Excellence Initiative. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 ; Conference date: 24-07-2016 Through 30-07-2016",

year = "2016",

doi = "10.22323/1.256.0294",

language = "English (US)",

volume = "Part F128557",

journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - Decay constants fB and fBs and quark masses mb and mc from HISQ simulations

AU - Komijani, J.

AU - Bazavov, A.

AU - Bernard, C.

AU - Brambilla, N.

AU - Brown, N.

AU - DeTar, C.

AU - Du, D.

AU - El-Khadra, A. X.

AU - Freeland, E. D.

AU - Gámiz, E.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Mackenzie, P. B.

AU - Monahan, C.

AU - Na, Heechang

AU - Neil, E. T.

AU - Simone, J. N.

AU - Sugar, R. L.

AU - Toussaint, D.

AU - Vairo, A.

AU - Van De Water, R. S.

N1 - Funding Information: Computations for this work were carried out with resources provided by the USQCD Collaboration; by the ALCF and NERSC, which are funded by the U.S. Department of Energy (DOE); and by NCAR, NCSA, NICS, TACC, and BlueWaters, which are funded through the U.S. National Science Foundation (NSF). Authors of this work were also supported in part through individual grants by the DOE and NSF (U.S); by MICINN and the Junta de Andalucía (Spain); by the European Commission; and by the German Excellence Initiative. Publisher Copyright: © Copyright owned by the author(s).

PY - 2016

Y1 - 2016

N2 - We present a progress report on our calculation of the decay constants fB and fBs from lattice- QCD simulations with highly-improved staggered quarks. Simulations are carried out with several heavy valence-quark masses on (2+1+1)-flavor ensembles that include charm sea quarks. We include data at six lattice spacings and several light sea-quark masses, including an approximately physical-mass ensemble at all but the smallest lattice spacing, 0.03 fm. This range of parameters provides excellent control of the continuum extrapolation to zero lattice spacing and of heavy-quark discretization errors. Finally, using the heavy-quark effective theory expansion we present a method of extracting from the same correlation functions the charm- and bottom-quark masses as well as some low-energy constants appearing in the heavy-quark expansion.

AB - We present a progress report on our calculation of the decay constants fB and fBs from lattice- QCD simulations with highly-improved staggered quarks. Simulations are carried out with several heavy valence-quark masses on (2+1+1)-flavor ensembles that include charm sea quarks. We include data at six lattice spacings and several light sea-quark masses, including an approximately physical-mass ensemble at all but the smallest lattice spacing, 0.03 fm. This range of parameters provides excellent control of the continuum extrapolation to zero lattice spacing and of heavy-quark discretization errors. Finally, using the heavy-quark effective theory expansion we present a method of extracting from the same correlation functions the charm- and bottom-quark masses as well as some low-energy constants appearing in the heavy-quark expansion.

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DO - 10.22323/1.256.0294

M3 - Conference article

AN - SCOPUS:85025825050

SN - 1824-8039

VL - Part F128557

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016

Y2 - 24 July 2016 through 30 July 2016

ER -