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, William D Toussaint, R. S.Van De Water, R. Zhou

Research output: Contribution to journalConference article

4 Citations (Scopus)

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 languageEnglish (US)
Article number13024
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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mesons
quarks
decay
neutral currents
form factors
quantum chromodynamics
spacing
valence
physics
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Gelzer, Z., Bernard, C., Tar, C. D., El-Khadra, A., Gámiz, E., Gottlieb, S., ... Zhou, R. (2018). Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles. EPJ Web of Conferences, 175, [13024]. https://doi.org/10.1051/epjconf/201817513024

Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles. / Gelzer, Zechariah; Bernard, C.; Tar, C. De; El-Khadra, Ax; Gámiz, E.; Gottlieb, Steven; Kronfeld, Andreas S.; Liu, Yuzhi; Meurice, Y.; Simone, J. N.; Toussaint, William D; Water, R. S.Van De; Zhou, R.

In: EPJ Web of Conferences, Vol. 175, 13024, 26.03.2018.

Research output: Contribution to journalConference article

Gelzer, Z, Bernard, C, Tar, CD, El-Khadra, A, Gámiz, E, Gottlieb, S, Kronfeld, AS, Liu, Y, Meurice, Y, Simone, JN, Toussaint, WD, Water, RSVD & Zhou, R 2018, 'Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles', EPJ Web of Conferences, vol. 175, 13024. https://doi.org/10.1051/epjconf/201817513024
Gelzer Z, Bernard C, Tar CD, El-Khadra A, Gámiz E, Gottlieb S et al. Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles. EPJ Web of Conferences. 2018 Mar 26;175. 13024. https://doi.org/10.1051/epjconf/201817513024
Gelzer, Zechariah ; Bernard, C. ; Tar, C. De ; El-Khadra, Ax ; Gámiz, E. ; Gottlieb, Steven ; Kronfeld, Andreas S. ; Liu, Yuzhi ; Meurice, Y. ; Simone, J. N. ; Toussaint, William D ; Water, R. S.Van De ; Zhou, R. / Semileptonic B -meson decays to light pseudoscalar mesons on the HISQ ensembles. In: EPJ Web of Conferences. 2018 ; Vol. 175.
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AU - Gottlieb, Steven

AU - Kronfeld, Andreas S.

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