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arXiv · 1711.01786

Calculation of $\bar B \rightarrow D^\ast \ell \bar ν$ form factor at zero recoil using the Oktay-Kronfeld action

Jon A. Bailey·Tanmoy Bhattacharya·Rajan Gupta·Yong-Chull Jang·Weonjong Lee·Jaehoon Leem·Sungwoo Park·Boram Yoon
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Abstract

We present the first preliminary results for the semileptonic form factor $h_{A_1}(w=1)/ρ_{A_j}$ at zero recoil for the $\bar B \rightarrow D^\ast \ell \bar ν$ decay using lattice QCD with four flavors of sea quarks. We use the HISQ staggered action for the light valence and sea quarks (the MILC HISQ configurations), and the Oktay-Kronfeld (OK) action for the heavy valence quarks.

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Jon A. Bailey, Tanmoy Bhattacharya, Rajan Gupta, Yong-Chull Jang, Weonjong Lee, Jaehoon Leem, Sungwoo Park, Boram Yoon. 2017-11-07. Calculation of $\bar B \rightarrow D^\ast \ell \bar ν$ form factor at zero recoil using the Oktay-Kronfeld action. https://arxiv.org/abs/1711.01786

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