Precise Calculation of the Dilepton Invariant-Mass Spectrum and the Decay Rate in $B^{\pm }\to {\pi }^{\pm }{\mu }^{+}{\mu }^{-}$ in the SM

Ahmed Ali, Alexander Ya. Parkhomenko, Aleksey V. Rusov

We present a precise calculation of the dilepton invariant-mass spectrum and the decay rate for $B^{\pm }\to {\pi }^{\pm }{\ell }^{+}{\ell }^{-}$ (${\ell }^{\pm }=e^{\pm },{\mu }^{\pm }$) in the Standard Model (…