Decay constants fB and fBs from HISQ simulations

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

Decay constants f_B and f_Bs from HISQ simulations

A. Bazavov, C. Bernard, C. Bouchard, N. Brown, C. Detar, D. Du, A. X. El-Khadra, E. D. Freeland, E. Gámiz, Steven Gottlieb, U. M. Heller, J. Komijani, A. S. Kronfeld, J. Laiho, L. Levkova, P. B. Mackenzie, C. Monahan, T. Primer, Heechang Na, E. T. NeilJ. N. Simone, R. L. Sugar, D. Toussaint, R. S. Van De Waterl, R. Zhou

Department of Physics

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

1 Scopus citations

Abstract

We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios m_ud=m_s, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for f_B and f_Bs , respectively.,We give a progress report on a project aimed at a high-precision calculation of the decay constants f_B and f_Bs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for f_B and f_Bs , respectively.

Original language	English (US)
Article number	331
Journal	Proceedings of Science
Volume	14-18-July-2015
State	Published - 2015
Event	33rd International Symposium on Lattice Field Theory, LATTICE 2015 - Kobe, Japan Duration: Jul 14 2015 → Jul 18 2015

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Bazavov, A., Bernard, C., Bouchard, C., Brown, N., Detar, C., Du, D., El-Khadra, A. X., Freeland, E. D., Gámiz, E., Gottlieb, S., Heller, U. M., Komijani, J., Kronfeld, A. S., Laiho, J., Levkova, L., Mackenzie, P. B., Monahan, C., Primer, T., Na, H., ... Zhou, R. (2015). Decay constants f_B and f_Bs from HISQ simulations. Proceedings of Science, 14-18-July-2015, Article 331.

Bazavov, A, Bernard, C, Bouchard, C, Brown, N, Detar, C, Du, D, El-Khadra, AX, Freeland, ED, Gámiz, E, Gottlieb, S, Heller, UM, Komijani, J, Kronfeld, AS, Laiho, J, Levkova, L, Mackenzie, PB, Monahan, C, Primer, T, Na, H, Neil, ET, Simone, JN, Sugar, RL, Toussaint, D, Van De Waterl, RS & Zhou, R 2015, 'Decay constants f_B and f_Bs from HISQ simulations', Proceedings of Science, vol. 14-18-July-2015, 331.

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title = "Decay constants fB and fBs from HISQ simulations",

abstract = "We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.,We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.",

author = "A. Bazavov and C. Bernard and C. Bouchard 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 J. Komijani and Kronfeld, {A. S.} and J. Laiho and L. Levkova and Mackenzie, {P. B.} and C. Monahan and T. Primer and Heechang Na and Neil, {E. T.} and Simone, {J. N.} and Sugar, {R. L.} and D. Toussaint and {Van De Waterl}, {R. S.} and R. Zhou",

year = "2015",

language = "English (US)",

volume = "14-18-July-2015",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "33rd International Symposium on Lattice Field Theory, LATTICE 2015 ; Conference date: 14-07-2015 Through 18-07-2015",

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TY - JOUR

T1 - Decay constants fB and fBs from HISQ simulations

AU - Bazavov, A.

AU - Bernard, C.

AU - Bouchard, C.

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 - Komijani, J.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Levkova, L.

AU - Mackenzie, P. B.

AU - Monahan, C.

AU - Primer, T.

AU - Na, Heechang

AU - Neil, E. T.

AU - Simone, J. N.

AU - Sugar, R. L.

AU - Toussaint, D.

AU - Van De Waterl, R. S.

AU - Zhou, R.

PY - 2015

Y1 - 2015

N2 - We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.,We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.

AB - We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.,We give a progress report on a project aimed at a high-precision calculation of the decay constants fB and fBs from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios mud=ms, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. We present a preliminary error budget with projected uncertainties of 2.2 MeV and 1.5 MeV for fB and fBs , respectively.

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M3 - Conference Article

AN - SCOPUS:84988662749

SN - 1824-8039

VL - 14-18-July-2015

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 331

T2 - 33rd International Symposium on Lattice Field Theory, LATTICE 2015

Y2 - 14 July 2015 through 18 July 2015

ER -

Decay constants f_B and f_Bs from HISQ simulations

Abstract

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