Multifaceted Quadruplet of Low-Lying Spin-Zero States in Ni 66: Emergence of Shape Isomerism in Light Nuclei
| dc.contributor.author | Leoni, Silvia | |
| dc.contributor.author | Fornal, Bogdan | |
| dc.contributor.author | Mârginean, Nicolae Marius. | |
| dc.contributor.author | Sferrazza, Michele | |
| dc.contributor.author | Tsunoda, Yuhsuke | |
| dc.contributor.author | Otsuka, Takaharu | |
| dc.contributor.author | Bocchi, Giovanni | |
| dc.contributor.author | Aydın, Sezgin | |
| dc.date.accessioned | 13.07.201910:50:10 | |
| dc.date.accessioned | 2019-07-16T08:21:41Z | |
| dc.date.available | 13.07.201910:50:10 | |
| dc.date.available | 2019-07-16T08:21:41Z | |
| dc.date.issued | 2017 | |
| dc.department | Sabire Yazıcı Fen Edebiyat Fakültesi | |
| dc.description.abstract | A search for shape isomers in the Ni66 nucleus was performed, following old suggestions of various mean-field models and recent ones, based on state-of-the-art Monte Carlo shell model (MCSM), all considering Ni66 as the lightest nuclear system with shape isomerism. By employing the two-neutron transfer reaction induced by an O18 beam on a Ni64 target, at the sub-Coulomb barrier energy of 39 MeV, all three lowest-excited 0+ states in Ni66 were populated and their ? decay was observed by ?-coincidence technique. The 0+ states lifetimes were assessed with the plunger method, yielding for the 02+, 03+, and 04+ decay to the 21+ state the B(E2) values of 4.3, 0.1, and 0.2 Weisskopf units (W.u.), respectively. MCSM calculations correctly predict the existence of all three excited 0+ states, pointing to the oblate, spherical, and prolate nature of the consecutive excitations. In addition, they account for the hindrance of the E2 decay from the prolate 04+ to the spherical 21+ state, although overestimating its value. This result makes Ni66 a unique nuclear system, apart from U236,238, in which a retarded ? transition from a 0+ deformed state to a spherical configuration is observed, resembling a shape-isomerlike behavior. © 2017 American Physical Society. | |
| dc.identifier.doi | 10.1103/PhysRevLett.118.162502 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issue | 16 | en_US |
| dc.identifier.scopusquality | Q1 | |
| dc.identifier.uri | https://dx.doi.org/10.1103/PhysRevLett.118.162502 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12451/2300 | |
| dc.identifier.volume | 118 | en_US |
| dc.identifier.wosquality | N/A | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.indekslendigikaynak | PubMed | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.relation.ispartof | Physical Review Letters | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.title | Multifaceted Quadruplet of Low-Lying Spin-Zero States in Ni 66: Emergence of Shape Isomerism in Light Nuclei | |
| dc.type | Article |
