B̄ → D∗ℓ̄ v at non-zero recoil

Alejandro Vaquero Avilés-Casco, Carleton Detar, Daping Du, Aida El-Khadra, Andreas Kronfeld, John W Laiho, Ruth S. Van De Water

Research output: Contribution to journalConference article

9 Scopus citations


We present preliminary results from our analysis of the form factors for the B → D∗lv decay at non-zero recoil. Our analysis includes 15 MILC asqtad ensembles with Nf = 2 + 1 flavors of sea quarks and lattice spacings ranging from a ≈ 0.15 fm down to 0.045 fm. The valence light quarks employ the asqtad action, whereas the heavy quarks are treated using the Fermilab action. We conclude with a discussion of future plans and phenomenological implications. When combined with experimental measurements of the decay rate, our calculation will enable a determination of the CKM matrix element |Vcb|.

Original languageEnglish (US)
Article number13003
JournalEPJ Web of Conferences
StatePublished - Mar 26 2018
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: Jun 18 2017Jun 24 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Avilés-Casco, A. V., Detar, C., Du, D., El-Khadra, A., Kronfeld, A., Laiho, J. W., & Van De Water, R. S. (2018). B̄ → D∗ℓ̄ v at non-zero recoil. EPJ Web of Conferences, 175, [13003]. https://doi.org/10.1051/epjconf/201817513003