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, John W Laiho, P. B. Mackenzie, Y. Meurice, E. T. Neil, J. N. Simone, R. Sugar & 3 others D. Toussaint, R. S. Van De Water, Ran Zhou

Research output: Contribution to journalConference article

2 Citations (Scopus)

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|.

Original languageEnglish (US)
Article number13008
JournalEPJ Web of Conferences
Volume175
DOIs
StatePublished - Mar 26 2018
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: Jun 18 2017Jun 24 2017

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form factors
quarks
spacing
valence
decay
matrices

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Liu, Y., Bailey, J. A., Bazavov, A., Bernard, C., Bouchard, C. M., Detar, C., ... Zhou, R. (2018). B s → Kℓ v form factors with 2+1 flavors. EPJ Web of Conferences, 175, [13008]. https://doi.org/10.1051/epjconf/201817513008

B s → Kℓ v form factors with 2+1 flavors. / Liu, Yuzhi; Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; Detar, C.; Du, Daping; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gelzer, Z.; Gottlieb, Steven; Heller, U. M.; Kronfeld, A. S.; Laiho, John W; Mackenzie, P. B.; Meurice, Y.; Neil, E. T.; Simone, J. N.; Sugar, R.; Toussaint, D.; Van De Water, R. S.; Zhou, Ran.

In: EPJ Web of Conferences, Vol. 175, 13008, 26.03.2018.

Research output: Contribution to journalConference article

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, JW, 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
Liu Y, Bailey JA, Bazavov A, Bernard C, Bouchard CM, Detar C et al. B s → Kℓ v form factors with 2+1 flavors. EPJ Web of Conferences. 2018 Mar 26;175. 13008. https://doi.org/10.1051/epjconf/201817513008
Liu, Yuzhi ; Bailey, Jon A. ; Bazavov, A. ; Bernard, C. ; Bouchard, C. M. ; Detar, C. ; Du, Daping ; El-Khadra, A. X. ; Freeland, E. D. ; Gámiz, E. ; Gelzer, Z. ; Gottlieb, Steven ; Heller, U. M. ; Kronfeld, A. S. ; Laiho, John W ; Mackenzie, P. B. ; Meurice, Y. ; Neil, E. T. ; Simone, J. N. ; Sugar, R. ; Toussaint, D. ; Van De Water, R. S. ; Zhou, Ran. / B s → Kℓ v form factors with 2+1 flavors. In: EPJ Web of Conferences. 2018 ; Vol. 175.
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AU - Detar, C.

AU - Du, Daping

AU - El-Khadra, A. X.

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AU - Gelzer, Z.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Kronfeld, A. S.

AU - Laiho, John W

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

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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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