New narrow resonances observed in the unbound nucleus F 15

The structure of the unbound F 15 nucleus is investigated using the inverse kinematics resonant scattering of a radioactive O 14 beam impinging on a CH2 target. The analysis of H 1( O 14, p ) O 14 and H 1( O 14,2 p ) N 13 reactions allowed the confirmation of the previously observed narrow 1/2− reso...

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Veröffentlicht in:	Phys.Rev.C 2022-05, Vol.105 (5), Article L051301
Hauptverfasser:	Girard-Alcindor, V., Mercenne, A., Stefan, I., de Oliveira Santos, F., Michel, N., Płoszajczak, M., Assié, M., Lemasson, A., Clément, E., Flavigny, F., Matta, A., Ramos, D., Rejmund, M., Dudouet, J., Ackermann, D., Adsley, P., Assunção, M., Bastin, B., Beaumel, D., Benzoni, G., Borcea, R., Boston, A. J., Brugnara, D., Cáceres, L., Cederwall, B., Celikovic, I., Chudoba, V., Ciemala, M., Collado, J., Crespi, F. C. L., D'Agata, G., De France, G., Delaunay, F., Diget, C., Domingo-Pardo, C., Eberth, J., Fougères, C., Franchoo, S., Galtarossa, F., Georgiadou, A., Gibelin, J., Giraud, S., González, V., Goyal, N., Gottardo, A., Goupil, J., Grévy, S., Guimaraes, V., Hammache, F., Harkness-Brennan, L. J., Hess, H., Jovančević, N., Judson Oliver, D. S., Kamalou, O., Kamenyero, A., Kiener, J., Korten, W., Koyama, S., Labiche, M., Lalanne, L., Lapoux, V., Leblond, S., Lefevre, A., Lenain, C., Leoni, S., Li, H., Lopez-Martens, A., Maj, A., Matea, I., Menegazzo, R., Mengoni, D., Meyer, A., Million, B., Monteagudo, B., Morfouace, P., Mrazek, J., Niikura, M., Piot, J., Podolyak, Zs, Portail, C., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rezynkina, K., Roger, T., Rojo, J. S., Rotaru, F., Salsac, M. D., Sánchez Benítez, A. M., Sanchis, E., Şenyigit, M., de Séréville, N., Siciliano, M., Simpson, J., Sohler, D., Sorlin, O., Stanoiu, M., Stodel, C., Suzuki, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Nuclear Experiment Nuclear Theory Physics
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Zusammenfassung:	The structure of the unbound F 15 nucleus is investigated using the inverse kinematics resonant scattering of a radioactive O 14 beam impinging on a CH2 target. The analysis of H 1( O 14, p ) O 14 and H 1( O 14,2 p ) N 13 reactions allowed the confirmation of the previously observed narrow 1/2− resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2− and 3/2− resonances. The newly observed levels decay by 1p emission to the ground of O 14, and by sequential 2p emission to the ground state of N 13 via the 1− resonance of O 14. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2− and 3/2− resonances may be collectivized by the continuum coupling to nearby 2p- and 1p-decay channels. The observed excitation function H 1( O 14, p ) O 14 and resonance spectrum in F 15 are well reproduced in the unified framework of the GSM.
ISSN:	2469-9985 2469-9993 2469-9993
DOI:	10.1103/PhysRevC.105.L051301