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

Zechariah Gelzer, C. Bernard, C. DeTar, A. X. 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

Research output: Contribution to journalArticlepeer-review


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 → π`ν, Bs → K`ν) and neutral currents (B → π`+`, B → K`+`). 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)
JournalUnknown Journal
StatePublished - Oct 25 2017

ASJC Scopus subject areas

  • General

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