TY  - JOUR
AU  - Girard-Alcindor, V. et al
AU  - Domingo-Pardo, C.
PY  - 2022
DA  - 2022//
TI  - New narrow resonances observed in the unbound nucleus F-15
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - L051301 - 7pp
VL  - 105
IS  - 5
PB  - Amer Physical Soc
AB  - 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, 2p) 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.
SN  - 2469-9985
UR  - https://arxiv.org/abs/2111.14412
UR  - https://doi.org/10.1103/PhysRevC.105.L051301
DO  - 10.1103/PhysRevC.105.L051301
LA  - English
N1  - WOS:000811520800003
ID  - Girard-Alcindor+Domingo-Pardo2022
ER  -