Extended Data Fig. 2: Distributions of two-body and three-body masses of final-state particles.

The mass distributions of (a) pK⁻ and (b) π⁺π⁻, corresponding to the \({\Lambda }_{b}^{0}\to R(p{K}^{-})R({\pi }^{+}{\pi }^{-})\) phase-space region; (c) pπ⁻ and (d) K⁻π⁺, corresponding to the \({\Lambda }_{b}^{0}\to R(p{\pi }^{-})R({K}^{-}{\pi }^{+})\) phase-space region; (e) pπ⁺π⁻, representing the \({\Lambda }_{b}^{0}\to R(p{\pi }^{+}{\pi }^{-}){K}^{-}\) phase-space region; and (f) K⁻π⁺π⁻, representing the \({\Lambda }_{b}^{0}\to R({K}^{-}{\pi }^{+}{\pi }^{-})p\) phase-space region. The \({\Lambda }_{b}^{0}\) and \({\bar{\Lambda }}_{b}^{0}\) samples are combined for the plots.