Article
Deep excursion beyond the proton dripline. I. Argon and chlorine isotope chains
Author/s | Mukha, I.
Grigorenko, L. Kostyleva, D. Acosta, L. Casarejos, E. Ciemny, A. A. Espino Navas, José Manuel |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2018 |
Deposit Date | 2020-06-29 |
Published in |
|
Abstract | The proton-unbound argon and chlorine isotopes have been studied by measuring trajectories
of their decay-in-flight products by using a tracking technique with micro-strip detectors. The
proton (1p) and two-proton (2p) ... The proton-unbound argon and chlorine isotopes have been studied by measuring trajectories of their decay-in-flight products by using a tracking technique with micro-strip detectors. The proton (1p) and two-proton (2p) emission processes have been detected in the measured angular correlations “heavy-fragment”+p and “heavy-fragment”+p+p, respectively. The ground states of the previously unknown isotopes 30Cl and 28Cl have been observed for the first time, providing the 1p separation energies Sp of −0.48(2) and −1.60(8) MeV, respectively. The relevant systematics of 1p and 2p separation energies have been studied theoretically in the core+p and core+p+p cluster models. The first-time observed excited states of 31Ar allow to infer the 2p-separation energy S2p of 6(34) keV for its ground state. The first-time observed state in 29Ar with S2p = −5.50(18) MeV can be identified either as a ground or an excited state according to different systematics. |
Funding agencies | Helmholtz Association Helmholtz International Center Russian Science Foundation Polish National Science Center |
Project ID. | IK-RU-002
17-12-01367 UMO- 2015/17/B/ST2/00581 Polish Ministry of Science and Higher Education 0079/DIA/2014/43 |
Citation | Mukha, I., Grigorenko, L., Kostyleva, D., Acosta, L., Casarejos, E., Ciemny, A.A. y Espino Navas, J.M. (2018). Deep excursion beyond the proton dripline. I. Argon and chlorine isotope chains. Physical Review C, 98 (6), 1-13. |
Files | Size | Format | View | Description |
---|---|---|---|---|
Deep excursion.pdf | 901.4Kb | [PDF] | View/ | |