Speaker
Prof.
Stefan Meinel
(University of Arizona / RIKEN BNL Research Center)
Description
Adding a hard photon to the final state of a leptonic pseudoscalar-meson decay lifts the helicity suppression and can provide sensitivity to a larger set of operators in the weak effective Hamiltonian. Furthermore, radiative leptonic B decays at high photon energy are well suited to constrain the first inverse moment of the B-meson light-cone distribution amplitude, an important parameter in the theory of nonleptonic B decays. We present our progress with lattice-QCD calculations of the hadronic matrix elements describing radiative leptonic decays of light and heavy mesons.
Authors
Prof.
Stefan Meinel
(University of Arizona / RIKEN BNL Research Center)
Christopher Kane
(University of Arizona)
Christoph Lehner
(BNL)
AMARJIT Soni
(BNL)
