New narrow resonances observed in the unbound nucleus <SUP>15</SUP>F

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) (2022) New narrow resonances observed in the unbound nucleus <SUP>15</SUP>F. PHYSICAL REVIEW C, 105 (5). l051301-.

[img] PDF
article_15F_revised.pdf - Author Accepted Manuscript

Download (401kB) | Preview


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: 15 Mar 2024 04:49
DOI: 10.1103/PhysRevC.105.L051301
Related URLs: