Toward a complete description of $b\to u{\ell }^{-}\bar{\nu }$ decays within the Weak Effective Theory

Domagoj Leljak, Blaženka Melić, Filip Novak +2

We fit the available data on exclusive semileptonic $b\to u{\ell }^{-}\bar{\nu }$ decays within the Standard Model and in the Weak Effective Theory. Assuming Standard Model dynamics, we find…