B s → Kℓ v form factors with 2+1 flavors

Yuzhi Liu; Jon A. Bailey; A. Bazavov; C. Bernard; C. M. Bouchard; C. Detar; Daping Du; A. X. El-Khadra; E. D. Freeland; E. Gámiz; Z. Gelzer; Steven Gottlieb; U. M. Heller; A. S. Kronfeld; J. Laiho; P. B. Mackenzie; Y. Meurice; E. T. Neil; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van De Water; Ran Zhou

doi:10.1051/epjconf/201817513008

B _s → Kℓ v form factors with 2+1 flavors

Yuzhi Liu, Jon A. Bailey, A. Bazavov, C. Bernard, C. M. Bouchard, C. Detar, Daping Du, A. X. El-Khadra, E. D. Freeland, E. Gámiz, Z. Gelzer, Steven Gottlieb, U. M. Heller, A. S. Kronfeld, J. Laiho, P. B. Mackenzie, Y. Meurice, E. T. Neil, J. N. Simone, R. SugarD. Toussaint, R. S. Van De Water, Ran Zhou

Department of Physics

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

6 Scopus citations

Abstract

Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f₀ and f₊ for the semileptonic B_s → Kℓ v decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m'_l is one-tenth the strange quark mass m'_s. At the intermediate lattice spacing, the ratio m'_l/m'_s ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |V_ub|.

Original language	English (US)
Article number	13008
Journal	EPJ Web of Conferences
Volume	175
DOIs	https://doi.org/10.1051/epjconf/201817513008
State	Published - Mar 26 2018
Event	35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain Duration: Jun 18 2017 → Jun 24 2017

ASJC Scopus subject areas

General Physics and Astronomy

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10.1051/epjconf/201817513008

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Liu, Y., Bailey, J. A., Bazavov, A., Bernard, C., Bouchard, C. M., Detar, C., Du, D., El-Khadra, A. X., Freeland, E. D., Gámiz, E., Gelzer, Z., Gottlieb, S., Heller, U. M., Kronfeld, A. S., Laiho, J., Mackenzie, P. B., Meurice, Y., Neil, E. T., Simone, J. N., ... Zhou, R. (2018). B _s → Kℓ v form factors with 2+1 flavors. EPJ Web of Conferences, 175, Article 13008. https://doi.org/10.1051/epjconf/201817513008

Liu, Y, Bailey, JA, Bazavov, A, Bernard, C, Bouchard, CM, Detar, C, Du, D, El-Khadra, AX, Freeland, ED, Gámiz, E, Gelzer, Z, Gottlieb, S, Heller, UM, Kronfeld, AS, Laiho, J, Mackenzie, PB, Meurice, Y, Neil, ET, Simone, JN, Sugar, R, Toussaint, D, Van De Water, RS & Zhou, R 2018, 'B _s → Kℓ v form factors with 2+1 flavors', EPJ Web of Conferences, vol. 175, 13008. https://doi.org/10.1051/epjconf/201817513008

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title = "B s → Kℓ v form factors with 2+1 flavors",

abstract = "Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f0 and f+ for the semileptonic Bs → Kℓ v decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m'l is one-tenth the strange quark mass m's. At the intermediate lattice spacing, the ratio m'l/m's ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |Vub|.",

author = "Yuzhi Liu and Bailey, {Jon A.} and A. Bazavov and C. Bernard and Bouchard, {C. M.} and C. Detar and Daping Du and El-Khadra, {A. X.} and Freeland, {E. D.} and E. G{\'a}miz and Z. Gelzer and Steven Gottlieb and Heller, {U. M.} and Kronfeld, {A. S.} and J. Laiho and Mackenzie, {P. B.} and Y. Meurice and Neil, {E. T.} and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van De Water}, {R. S.} and Ran Zhou",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences, 2018.; 35th International Symposium on Lattice Field Theory, Lattice 2017 ; Conference date: 18-06-2017 Through 24-06-2017",

year = "2018",

month = mar,

day = "26",

doi = "10.1051/epjconf/201817513008",

language = "English (US)",

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TY - JOUR

T1 - B s → Kℓ v form factors with 2+1 flavors

AU - Liu, Yuzhi

AU - Bailey, Jon A.

AU - Bazavov, A.

AU - Bernard, C.

AU - Bouchard, C. M.

AU - Detar, C.

AU - Du, Daping

AU - El-Khadra, A. X.

AU - Freeland, E. D.

AU - Gámiz, E.

AU - Gelzer, Z.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Mackenzie, P. B.

AU - Meurice, Y.

AU - Neil, E. T.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van De Water, R. S.

AU - Zhou, Ran

PY - 2018/3/26

Y1 - 2018/3/26

N2 - Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f0 and f+ for the semileptonic Bs → Kℓ v decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m'l is one-tenth the strange quark mass m's. At the intermediate lattice spacing, the ratio m'l/m's ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |Vub|.

AB - Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f0 and f+ for the semileptonic Bs → Kℓ v decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m'l is one-tenth the strange quark mass m's. At the intermediate lattice spacing, the ratio m'l/m's ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |Vub|.

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JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

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T2 - 35th International Symposium on Lattice Field Theory, Lattice 2017

Y2 - 18 June 2017 through 24 June 2017

ER -

B _s → Kℓ v form factors with 2+1 flavors

Abstract

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