Observation and branching fraction measurement of the decay Ξb- → Λ0 bπ - - Aaij, R; Abdelmotteleb, ASW; Abellan, Beteta C; Abudinen, F; Ackernley, T; Adeva, B; Adinolfi, M; Adlarson, P; Afsharnia, H; Agapopoulou, C; Aidala, CA; Ajaltouni, Z; et al. (PHYSICAL REVIEW D, 2023)