R-Matrix study of the β+decay of 8B to the highly excited states of 8Be D. Fernandez Ruiz, S. Viñals, O. Tengblad, M.J.G. Borge, H.O.U. Fynbo, K. Riisager and E. Nácher EPJ Web of Conf., 290 (2023) 02008 Published online: 08 December 2023 DOI: 10.1051/epjconf/202329002008