I. Ciraldo, F. Cappuzzello, M. Cavallaro, D. Carbone, S. Burrello, A. Spatafora, A. Gargano, G. De Gregorio, R. I. Magaña Vsevolodovna, L. Acosta, C. Agodi, P. Amador-Valenzuela, T. Borello-Lewin, G. A. Brischetto, S. Calabrese, D. Calvo, V. Capirossi, E. R. Chávez Lomelí, M. Colonna, F. Delaunay, H. Djapo, C. Eke, P. Finocchiaro, S. Firat, M. Fisichella, A. Foti, A. Hacisalihoglu, F. Iazzi, L. La Fauci, R. Linares, N. H. Medina, M. Moralles, J. R. B. Oliveira, A. Pakou, L. Pandola, H. Petrascu, F. Pinna, G. Russo, E. Santopinto, O. Sgouros, M. A. Guazzelli, S. O. Solakci, V. Soukeras, G. Souliotis, D. Torresi, S. Tudisco, A. Yildirim, V. A. B. Zagatto

Physical Review C

08/04/2022

Abstract

Heavy-ion one-nucleon transfer reactions are promising tools to investigate single-particle configurations in nuclear states with and without the excitation of the core degrees of freedom. A careful determination of the spectroscopic amplitudes of these configurations is essential for the accurate study of other direct reactions as well as β decays. In nucleon transfer reactions core excitations, for both target and projectile systems, are best approached via coupled-channels reaction schemes. Despite being notoriously demanding in terms of computing resources, coupled-channels analyses are progressively becoming more affordable even within model spaces large enough for tackling medium mass nuclei. In this context, the 76Se(18O,17O)77Se reaction, here under study, gives a quantitative access to the relevant single-particle orbitals and core polarization configurations built on 76Se. This is particularly relevant, since it provides data-driven information to constrain nuclear structure models for 76Se, which is the daughter nucleus in the 76Ge ββ decay. This reaction is one of the systems studied in the frame of the Nuclear Matrix Elements for Neutrinoless double beta decay project.

10.1103/PhysRevC.105.044607