HESS J1745−290 spectrum explained by a transition in the diffusion regime of PeV cosmic rays in the Sgr A* accretion flowClaudio Muena, Mario Riquelme, Andreas Reisenegger and Astor SandovalA&A, 689 (2024) A216DOI: https://doi.org/10.1051/0004-6361/202449851