Ortega Moral, A.Sánchez Benítez, Ángel MiguelVandebrouck, M.2025-05-292025-05-292025-04Moral, A. O., Wang, S. M., Giovinazzo, J., Roger, T., Blank, B., Ascher, P., Borcea, C., Caceres, L., Caamano, M., Santos, F. de O., de Roubin, A., Fernandez-Dominguez, B., Fernandez-Dominguez, D., Lois-Fuentes, J., Gerbaux, M., Grevy, S., Hukkanen, M., Husson, A., Kamalou, O., … Vandebrouck, M. (2025). Two-proton correlations in the decay of 48Ni and 45Fe (Version 1). arXiv. https://doi.org/10.48550/ARXIV.2504.14607https://hdl.handle.net/10272/25597The main observables of the rare two-proton emission process - half-life, total energy of the decay as well as energy and angular correlations between the emitted protons - have been measured for 48Ni and 45Fe in a recent experiment performed at the GANIL/LISE3 facility. The results, together with previous experimental work, are compared for the first time with calculations performed in the recently developed Gamow Coupled-Channel (GCC) framework and to 3-body predictions from literature. The comparison of the 48Ni and the 45Fe two-proton angular distributions with the GCC calculations confirms the adopted strength of the proton-proton interaction for both nuclei and the predominant small-angle emission. A comparison with 3-body model angular distributions indicates the shell closure of the f7/2 orbital for 48Ni and a substantial occupancy of the p-orbital for 45Fe. Discrepancies between experimental data and theoretical predictions are found when studying the other observables: half-lives, total energy of the decay and energy correlations, showing the complexity of the description of the two-proton emission processengAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/journal article10.48550/ARXIV.2504.14607open access22 Física