Hartley, DJ, Villafana, K, Kondev, FG, Riley, MA, Janssens, RVF, Auranen, K, Ayangeakaa, AD, Baron, JS, Boston, AJ, Carpenter, MP et al (show 17 more authors)
(2021)
Possible quenching of static neutron pairing near the <i>N</i>=98 deformed shell gap: Rotational structures in <SUP>160,161</SUP>Gd.
PHYSICAL REVIEW C, 103 (3).
034322-.
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PhysRevC.103.034322.pdf - Published Version Download (1MB) | Preview |
Abstract
A Gd160 beam was accelerated to an energy of 1000 MeV and, separately, bombarded thick targets of Sm154 and Dy164 in order to observe neutron-rich, rare-earth nuclei via deep-inelastic collision processes. Gammasphere was utilized to observe ?-ray emissions. Many new states and transitions were observed in Gd160 as a result of so-called unsafe Coulomb excitation. The ground-state band in Gd160 has been extended to Ip=20+ and a rotational band based on the Kp=4+ state, previously associated with a hexadecapole vibration, was observed up to 18+. The quasiparticle configuration of the Kp=4+ band has been determined, and its unusual alignment behavior may result from a possible quenching of static neutron pairing. In addition, the band based on the [523]5/2 quasineutron orbital in Gd161 was extended from 11/2- to 33/2- and also displays the same unusual alignment behavior.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 26 Mar 2021 08:06 |
| Last Modified: | 15 Mar 2024 01:15 |
| DOI: | 10.1103/PhysRevC.103.034322 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3118161 |
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