New narrow resonances observed in the unbound nucleus F-15

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Girard-Alcindor, V, Mercenne, A, Stefan, I, Santos, F de Oliveira, Michel, N, Ploszajczak, M, Assic, M, Lemasson, A, Clement, E, Flavigny, F et al (show 96 more authors) , Matta, A, Ramos, D, Rejmund, M, Dudouet, J, Ackermann, D, Adsley, P, Assuncao, M, Bastin, B, Beaumel, D, Benzoni, G, Borcea, R, Boston, AJ, Brugnara, D, Caceres, L, Cederwall, B, Celikovic, I, Chudoba, V, Ciemala, M, Collado, J, Crespi, FCL, D'Agata, G, De France, G, Delaunay, F, Diget, C, Domingo-Pardo, C, Eberth, J, Fougeres, C, Franchoo, S, Galtarossa, F, Georgiadou, A, Gibelin, J, Giraud, S, Gonzalez, V, Goyal, N, Gottardo, A, Goupil, J, Grevy, S, Guimaraes, V, Hammache, F, Harkness-Brennan, LJ, Hess, H, Jovancevic, N, Oliver, DS Judson, 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, JS, Rotaru, F, Salsac, MD, Sanchez Benitez, AM, Sanchis, E, Senyigit, M, de Sereville, N, Siciliano, M, Simpson, J, Sohler, D, Sorlin, O, Stanoiu, M, Stodel, C, Suzuki, D, Theisen, C, Thisse, D, Thomas, JC, Ujic, P, Valiente-Dobon, JJ and Zielinska, M (2022) New narrow resonances observed in the unbound nucleus F-15. PHYSICAL REVIEW C, 105 (5).

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Abstract

The structure of the unbound F15 nucleus is investigated using the inverse kinematics resonant scattering of a radioactive O14 beam impinging on a CH2 target. The analysis of H1(O14,p)O14 and H1(O14,2p)N13 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 O14, and by sequential 2p emission to the ground state of N13 via the 1- resonance of O14. 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 H1(O14,p)O14 and resonance spectrum in F15 are well reproduced in the unified framework of the GSM.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	10 Oct 2022 13:05
Last Modified:	18 Jan 2023 20:37
DOI:	10.1103/PhysRevC.105.L051301
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3165301