Search of CP violation in baryons with the LHCb detector

The latest results from the LHCb collaboration for the search for $CP$ violation in b-baryon decays are reported here. The first article presented is the search conducted in the Λb⁰ → p π⁻ π⁺ π⁻ decay, and the subsequent observation of P violation. The following paper describes the search and the first observation of the Λb⁰ → D⁰ p K⁻ decay, with D⁰ → K π, Cabibbo-favoured and doubly suppressed mode. This proceeding concludes with the first amplitude analysis performed in Ξb⁻ → p K⁻ K⁻, whose model allows for CP violation.