Form factors of $B\to \pi \ell \nu$ and a determination of $|V_{ub}|$ with Möbius domain-wall-fermions

Brian Colquhoun, Shoji Hashimoto, Takashi Kaneko +1

Using a fully relativistic lattice fermion action, we compute the form factors of the semileptonic decay $B\to \pi \ell \nu$, which is required for the determination of the Cabibbo-Kobaya…