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- Title
Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F: A Tribute to Mahir Hussein.
- Authors
Girard-Alcindor, V.; Stefan, I.; de Oliveira Santos, F.; Sorlin, O.; Ackermann, D.; Adsley, P.; Angélique, J. C.; Assié, M.; Assunção, M.; Beaumel, D.; Berthoumieux, E.; Borcea, R.; Cáceres, L.; Celikovic, I.; Ciemala, M.; Chudoba, V.; D'Agata, G.; de Grancey, F.; Dumitru, G.; Flavigny, F.
- Abstract
The unbound proton-rich nuclei 16 F and 15 F are investigated experimentally and theoretically. Several experiments using the resonant elastic scattering method were performed at GANIL with radioactive beams to determine the properties of the low lying states of these nuclei. Strong asymmetry between 16 F– 16 N and 15 F– 15 C mirror nuclei is observed. The strength of the n u c l e o n - n u c l e o n effective interaction involving the loosely bound proton in the s 1 / 2 orbit is significantly modified with respect to their mirror nuclei 16 N and 15 C. The reduction of the effective interaction is estimated by calculating the interaction energies with a schematic zero-range force. It is found that, after correcting for the effects due to changes in the radial distribution of the single-particle wave functions, the mirror symmetry of the n - p interaction is preserved between 16 F and 16 N, while a difference of 63% is measured between the p - p versus n - n interactions in the second excited state of 15 F and 15 C nuclei. Several explanations are proposed.
- Subjects
RADIOACTIVE nuclear beams; MIRROR symmetry; WAVE functions; EXCITED states; ELASTIC scattering; EXOTIC nuclei; PROTONS
- Publication
European Physical Journal A -- Hadrons & Nuclei, 2021, Vol 57, Issue 3, p1
- ISSN
1434-6001
- Publication type
Article
- DOI
10.1140/epja/s10050-021-00410-1