Hadronic form factors for rare semileptonic $B$ decays

Abstract

We discuss first results for the computation of short distance contributions to semileptonic form factors for the rare $B$ decays $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ and $B_s\to \varphi {\ell }^{+}{\ell }^{-}$. Our simulations are based on RBC/UKQCD's $N_f=2+1$ ensembles with domain wall light quarks and the Iwasaki gauge action. For the valence $b$-quark we chose the relativistic heavy quark action.

7 pages, 1 table, 3 figures, presented at the 33rd International Symposium on Lattice Field Theory (Lattice2015), July 14-18, 2015, Kobe, Japan

References in corpus (6)

• Angular analysis and differential branching fraction of the decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$
• Continuum Limit Physics from 2+1 Flavor Domain Wall QCD
• $B\to K{l}^{+}{l}^{-}$ decay form factors from three-flavor lattice QCD
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Cited by in corpus (2)

• FLAG Review 2019
• Form factors for semi-leptonic $B$ decays