The results reveal significant asymmetries between the decay rates of the Λb0 baryon and its CP-conjugated antibaryon, providing, to our knowledge, the first observation of CP violation in baryon decays and demonstrating the different behaviours of baryons and antibaryons.
Open access article here: https://www.nature.com/articles/s41586-025-09119-3
From the abstract:
The results reveal significant asymmetries between the decay rates of the Λb0 baryon and its CP-conjugated antibaryon, providing, to our knowledge, the first observation of CP violation in baryon decays and demonstrating the different behaviours of baryons and antibaryons.
https://archive.ph/i23Lj