Hartley, DJ, Kondev, FG, Carpenter, MP, Janssens, RVF, Riley, MA, Villafana, K, Auranen, K, Ayangeakaa, AD, Baron, JS, Boston, AJ et al (show 15 more authors)
(2022)
nu i13/2 structures in Sm-155 and Gd-159: Supporting evidence of a Z=60 deformed subshell gap.
PHYSICAL REVIEW C, 105 (1).
014301-.
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Abstract
Maximal ground-state deformation should occur when both proton and neutron Fermi surfaces are located at midshell. However, subshell gaps that stabilize large deformation can exist at proton or neutron values other than midshell. One such gap may occur at Z=60 in the rare-earth region, as the energy of the first 2+ states in even-even nuclei are often lowest in an isotonic chain for neodymium (Z=60) rather than the midshell isotopes of dysprosium (Z=66). Further evidence of this deformed gap has now been observed by investigating the signature splitting systematics of the νi13/2 bands found in the odd-N, rare-earth nuclei. These were aided by the present observation of the νi13/2 band in Gd159 and the confirmation of the same structure in Sm155 via the transfer of a neutron from a Gd160 beam to a Sm154 target.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 31 Jan 2022 08:54 |
| Last Modified: | 15 Mar 2024 01:40 |
| DOI: | 10.1103/PhysRevC.105.014301 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3147854 |
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