Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.14607 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910915270541312 |
|---|---|
| author | Moral, A. Ortega Wang, S. M. Giovinazzo, J. Roger, T. Blank, B. Ascher, P. Borcea, C. Caceres, L. Caamano, M. Santos, F. de Oliveira de Roubin, A. Fernandez-Dominguez, B. Fernandez-Dominguez, D. Lois-Fuentes, J. Gerbaux, M. Grevy, S. Hukkanen, M. Husson, A. Kamalou, O. Kurtukian-Nieto, T. Michaud, J. Pancin, J. Piot, J. Pomorski, M. Regueira-Castro, D. Sanchez-Benitez, A. M. Sorlin, O. Stanoiu, M. Stodel, C. Thomas, J. -C. Vandebrouck, M. |
| author_facet | Moral, A. Ortega Wang, S. M. Giovinazzo, J. Roger, T. Blank, B. Ascher, P. Borcea, C. Caceres, L. Caamano, M. Santos, F. de Oliveira de Roubin, A. Fernandez-Dominguez, B. Fernandez-Dominguez, D. Lois-Fuentes, J. Gerbaux, M. Grevy, S. Hukkanen, M. Husson, A. Kamalou, O. Kurtukian-Nieto, T. Michaud, J. Pancin, J. Piot, J. Pomorski, M. Regueira-Castro, D. Sanchez-Benitez, A. M. Sorlin, O. Stanoiu, M. Stodel, C. Thomas, J. -C. Vandebrouck, M. |
| contents | The 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 f_7/2 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 process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_14607 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Two-proton correlations in the decay of 48Ni and 45Fe Moral, A. Ortega Wang, S. M. Giovinazzo, J. Roger, T. Blank, B. Ascher, P. Borcea, C. Caceres, L. Caamano, M. Santos, F. de Oliveira de Roubin, A. Fernandez-Dominguez, B. Fernandez-Dominguez, D. Lois-Fuentes, J. Gerbaux, M. Grevy, S. Hukkanen, M. Husson, A. Kamalou, O. Kurtukian-Nieto, T. Michaud, J. Pancin, J. Piot, J. Pomorski, M. Regueira-Castro, D. Sanchez-Benitez, A. M. Sorlin, O. Stanoiu, M. Stodel, C. Thomas, J. -C. Vandebrouck, M. Nuclear Experiment The 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 f_7/2 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 process. |
| title | Two-proton correlations in the decay of 48Ni and 45Fe |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2504.14607 |