Line broadening analysis for open states: two- and three-photon spectroscopyDorothy Koki Mringie, Kipkorir Cornelius, Geoffrey Kihara Rurimo and Ogaro Elijah Nyakang’oEur. Phys. J. D, 79 5 (2025) 53DOI: https://doi.org/10.1140/epjd/s10053-025-01004-y