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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

$B \to \pi \ell \nu$ and $B \to \pi\ell\ell$ decays with HISQ/NRQCD valence quarks on $N_f=2+1$ asqtad ensembles.

Jul 27, 2018, 4:50 PM
103 (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Weak Decays and Matrix Elements Weak Decays and Matrix Elements


Christopher Bouchard (Ohio State)


We discuss a calculation of the form factors for the flavor-changing charged current $b\to u$ and the flavor-changing neutral current $b\to d$ semileptonic decays, $B\to \pi\ell\nu$ and $B\to\pi\ell\ell$. HISQ light and NRQCD $b$ valence quarks are simulated on the MILC $N_f=2+1$ asqtad ensembles, including pion momenta that cover the full kinematic range of the decay. These data are analyzed using a hard pion ChPT motivated modified z-expansion developed in previous work. Preliminary results and phenomenological implications are discussed.

Primary author


Dr Christopher Monahan (University of Washington) Prof. Junko Shigemitsu (Ohio State) Prof. Peter Lepage (Cornell University)

Presentation Materials