Observation of several sources of $CP$ violation in $B^{+}\to {\pi }^{+}{\pi }^{+}{\pi }^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +868

Observations are reported of different sources of $CP$ violation from an amplitude analysis of $B^{+}\to {\pi }^{+}{\pi }^{+}{\pi }^{-}$ decays, based on a data sample corresponding to an integrated l…