Search for $CP$ violation and observation of $P$ violation in ${\Lambda }_b^0\to p{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +902

A search for $CP$ violation in the ${\Lambda }_b^0\to p{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decay is performed using LHCb data corresponding to an integrated luminosity of 6.6$f{b}^{-1}$ collected in $pp$ coll…