Angular analysis of the $B^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$ decay

LHCb collaboration, R. Aaij, M. Abdelfatah +1112

This paper presents the first measurement of the forward-backward asymmetry, $A_{\mathrm{FB}}$, and the flat term, $F_H$, that parameterise the angular distribution of the $B^+\toπ^+μ…