${{\boldsymbol B}^{0}}$ $\rightarrow$ ${{\boldsymbol \pi}^{-}}{{\boldsymbol \ell}^{+}}{{\boldsymbol \nu}_{{{{\boldsymbol \ell}}}}}$ INSPIRE search

$\Gamma($ ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{\mathit \ell}}}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{19}/\Gamma$
S042S48