Search for $CP$ violation and observation of $P$ violation in ${\mathrm{{\Lambda}}}_{b}^{0}{\rightarrow}p{{\pi}}^{{-}}{{\pi}}^{+}{{\pi}}^{{-}}$ decays

LHCb Collaboration; Bernet, R; Müller, K; Owen, P; Serra, N; Steinkamp, O; et al (2020). Search for $CP$ violation and observation of $P$ violation in ${\mathrm{{\Lambda}}}_{b}^{0}{\rightarrow}p{{\pi}}^{{-}}{{\pi}}^{+}{{\pi}}^{{-}}$ decays. Physical Review. D, Particles, fields, gravitation and cosmology, 102(5):051101.