Continuum and three-nucleon force in Borromean system: The 17Ne case
Starting from chiral two-nucleon (2NF) and chiral three-nucleon (3NF) potentials, we present a detailed study of 17Ne, a Borromean system, with the Gamow shell model which can capture continuum effects. More precisely, we take advantage of the normal-ordering approach to include the 3NF and the Berg...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-09-01
|
| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320304767 |
| _version_ | 1818519789174259712 |
|---|---|
| author | Y.Z. Ma F.R. Xu N. Michel S. Zhang J.G. Li B.S. Hu L. Coraggio N. Itaco A. Gargano |
| author_facet | Y.Z. Ma F.R. Xu N. Michel S. Zhang J.G. Li B.S. Hu L. Coraggio N. Itaco A. Gargano |
| author_sort | Y.Z. Ma |
| collection | DOAJ |
| description | Starting from chiral two-nucleon (2NF) and chiral three-nucleon (3NF) potentials, we present a detailed study of 17Ne, a Borromean system, with the Gamow shell model which can capture continuum effects. More precisely, we take advantage of the normal-ordering approach to include the 3NF and the Berggren representation to treat bound, resonant and continuum states on equal footing in a complex-momentum plane. In our framework, 3NF is essential to reproduce the Borromean structure of 17Ne, while the continuum is more crucial for the halo property of the nucleus. The two-proton halo structure is demonstrated by calculating the valence proton density and correlation density. The astrophysically interesting 3/2− excited state has its energy above the threshold of the proton emission, and therefore the two-proton decay should be expected from the state. |
| first_indexed | 2024-12-11T01:28:46Z |
| format | Article |
| id | doaj.art-17a7a9a2261c4d3e962f2bd6ce26a9b2 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T01:28:46Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-17a7a9a2261c4d3e962f2bd6ce26a9b22022-12-22T01:25:25ZengElsevierPhysics Letters B0370-26932020-09-01808135673Continuum and three-nucleon force in Borromean system: The 17Ne caseY.Z. Ma0F.R. Xu1N. Michel2S. Zhang3J.G. Li4B.S. Hu5L. Coraggio6N. Itaco7A. Gargano8School of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China; Corresponding author.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, ChinaSchool of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaIstituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126, Napoli, ItalyIstituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126, Napoli, Italy; Dipartimento di Matematica e Fisica, Università degli Studi della Campania “Luigi Vanvitelli”, viale Abramo Lincoln 5, I-81100 Caserta, ItalyIstituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126, Napoli, ItalyStarting from chiral two-nucleon (2NF) and chiral three-nucleon (3NF) potentials, we present a detailed study of 17Ne, a Borromean system, with the Gamow shell model which can capture continuum effects. More precisely, we take advantage of the normal-ordering approach to include the 3NF and the Berggren representation to treat bound, resonant and continuum states on equal footing in a complex-momentum plane. In our framework, 3NF is essential to reproduce the Borromean structure of 17Ne, while the continuum is more crucial for the halo property of the nucleus. The two-proton halo structure is demonstrated by calculating the valence proton density and correlation density. The astrophysically interesting 3/2− excited state has its energy above the threshold of the proton emission, and therefore the two-proton decay should be expected from the state.http://www.sciencedirect.com/science/article/pii/S0370269320304767ContinuumThree-nucleon forceGamow shell modelBorromean systemHalo structure |
| spellingShingle | Y.Z. Ma F.R. Xu N. Michel S. Zhang J.G. Li B.S. Hu L. Coraggio N. Itaco A. Gargano Continuum and three-nucleon force in Borromean system: The 17Ne case Physics Letters B Continuum Three-nucleon force Gamow shell model Borromean system Halo structure |
| title | Continuum and three-nucleon force in Borromean system: The 17Ne case |
| title_full | Continuum and three-nucleon force in Borromean system: The 17Ne case |
| title_fullStr | Continuum and three-nucleon force in Borromean system: The 17Ne case |
| title_full_unstemmed | Continuum and three-nucleon force in Borromean system: The 17Ne case |
| title_short | Continuum and three-nucleon force in Borromean system: The 17Ne case |
| title_sort | continuum and three nucleon force in borromean system the 17ne case |
| topic | Continuum Three-nucleon force Gamow shell model Borromean system Halo structure |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320304767 |
| work_keys_str_mv | AT yzma continuumandthreenucleonforceinborromeansystemthe17necase AT frxu continuumandthreenucleonforceinborromeansystemthe17necase AT nmichel continuumandthreenucleonforceinborromeansystemthe17necase AT szhang continuumandthreenucleonforceinborromeansystemthe17necase AT jgli continuumandthreenucleonforceinborromeansystemthe17necase AT bshu continuumandthreenucleonforceinborromeansystemthe17necase AT lcoraggio continuumandthreenucleonforceinborromeansystemthe17necase AT nitaco continuumandthreenucleonforceinborromeansystemthe17necase AT agargano continuumandthreenucleonforceinborromeansystemthe17necase |