14–18 Jul 2015
Kobe International Conference Center
Asia/Tokyo timezone

Semileptonic $B$-meson decay phenomenology with lattice QCD

16 Jul 2015, 09:30
20m
406 (Kobe International Conference Center)

406

Kobe International Conference Center

6-9-1 Minatojima-nakamachi, Chuo-ku, Kobe, Hyogo 650-0046, Japan
Talk Weak Decays and Matrix Elements Weak Decays and Matrix Elements

Speaker

ran zhou (Fermilab)

Description

We present Standard Model predictions for phenomenologically interesting observables for the rare decays $B \to K \ell^+\ell^-$, $B \to \pi \ell^+\ell^-$, $B \to K \nu \bar{\nu}$, and $B \to \pi \nu \bar{\nu}$, as well as for $B \to\pi\tau\nu$. All of these processes are sensitive to new physics effects, and there are a number of tensions between experimental measurements and Standard Model expectations of these and similar processes. We recently completed lattice calculations of the form factors for the semileptonic $B\to\pi$ and $B\to K$ transitions. Here we use these form factors to explore the phenomenology of these decays with quantitative control over the theoretical uncertainties.

Primary authors

Prof. Aida El-Khadra (University of Illinois) Dr Daping Du (Syracuse University)

Co-authors

Dr Andreas Kronfeld (Fermilab) Prof. Enrico Lunghi (Indiana University) Prof. John Laiho (Syracuse University) Dr Ran Zhou (Fermilab) Dr Ruth Van de Water (Fermilab) Prof. Steven Gottlieb (Indiana University) Prof. Yannick Meurice (University of Iowa) Dr Yuzhi Liu (University of Colorado)

Presentation materials