Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles

Zechariah Gelzer; C. Bernard; C. De Tar; Ax El-Khadra; E. Gámiz; Steven Gottlieb; Andreas S. Kronfeld; Yuzhi Liu; Y. Meurice; J. N. Simone; D. Toussaint; R. S.Van De Water; R. Zhou

doi:10.1051/epjconf/201817513024

Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles

Zechariah Gelzer, C. Bernard, C. De Tar, Ax El-Khadra, E. Gámiz, Steven Gottlieb, Andreas S. Kronfeld, Yuzhi Liu, Y. Meurice, J. N. Simone, D. Toussaint, R. S.Van De Water, R. Zhou

Physics

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

Abstract

We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of B mesons with both charged currents (B → πlv, Bs → Klv) and neutral currents (B → πl⁺l^-, B → Kl⁺l^-). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1 + 1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the b quark. Simulations are carried out at three lattice spacings down to 0.088 fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.

Original language	English (US)
Article number	13024
Journal	EPJ Web of Conferences
Volume	175
DOIs	https://doi.org/10.1051/epjconf/201817513024
State	Published - Mar 26 2018
Event	35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain Duration: Jun 18 2017 → Jun 24 2017

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General Physics and Astronomy

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10.1051/epjconf/201817513024

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title = "Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles",

abstract = "We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of B mesons with both charged currents (B → πlv, Bs → Klv) and neutral currents (B → πl+l-, B → Kl+l-). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1 + 1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the b quark. Simulations are carried out at three lattice spacings down to 0.088 fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.",

author = "Zechariah Gelzer and C. Bernard and Tar, {C. De} and Ax El-Khadra and E. G{\'a}miz and Steven Gottlieb and Kronfeld, {Andreas S.} and Yuzhi Liu and Y. Meurice and Simone, {J. N.} and D. Toussaint and Water, {R. S.Van De} and R. 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",

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day = "26",

doi = "10.1051/epjconf/201817513024",

language = "English (US)",

volume = "175",

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TY - JOUR

T1 - Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles

AU - Gelzer, Zechariah

AU - Bernard, C.

AU - Tar, C. De

AU - El-Khadra, Ax

AU - Gámiz, E.

AU - Gottlieb, Steven

AU - Kronfeld, Andreas S.

AU - Liu, Yuzhi

AU - Meurice, Y.

AU - Simone, J. N.

AU - Toussaint, D.

AU - Water, R. S.Van De

AU - Zhou, R.

PY - 2018/3/26

Y1 - 2018/3/26

N2 - We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of B mesons with both charged currents (B → πlv, Bs → Klv) and neutral currents (B → πl+l-, B → Kl+l-). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1 + 1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the b quark. Simulations are carried out at three lattice spacings down to 0.088 fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.

AB - We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of B mesons with both charged currents (B → πlv, Bs → Klv) and neutral currents (B → πl+l-, B → Kl+l-). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1 + 1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the b quark. Simulations are carried out at three lattice spacings down to 0.088 fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.

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UR - http://www.scopus.com/inward/citedby.url?scp=85045153974&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201817513024

DO - 10.1051/epjconf/201817513024

M3 - Conference article

AN - SCOPUS:85045153974

SN - 2101-6275

VL - 175

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 13024

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

Y2 - 18 June 2017 through 24 June 2017

ER -

Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles

Abstract

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