Speaker
Dr
Chris Bouchard
(University of Glasgow)
Description
Form factors and related phenomenology for the $B \to \pi \ell \nu$ and $B \to \pi \ell \ell$ decays will be presented. The simulations use HISQ light and NRQCD $b$ valence quarks on the MILC $N_f = 2 + 1$ asqtad ensembles, with pion momenta covering the full kinematic range for the decays. Large pion momenta (up to 2.6 GeV) data are analyzed via the hard pion ChPT motivated modified $z$-expansion. The leading sources of uncertainty and the next generation of calculations to address them will be discussed.
Authors
Dr
Chris Bouchard
(University of Glasgow)
Peter Lepage
(Cornell University)
Chris Monahan
Prof.
Junko Shigemitsu
(Ohio State University)
