Probing the structure of the $B$ meson with $B\to \ell \ell {\ell }^{\prime }\nu$

Aoife Bharucha, Bharti Kindra, Namit Mahajan

We consider the decay $B\to \ell \ell {\ell }^{\prime }\nu$ in QCD factorization for the case of non-zero (but small) $q^2$, taking into account leading power contributions at NLL in $\math…