Collective rotation of an oblate nucleus at very high spin

Petrache, C.; Frauendorf, S.; Lv, B.; Astier, A.; Dupont, E.; Guo, S.; Liu, M.; Zhou, X.; Wang, K.; Greenlees, P.; Badran, H.; Cox, D.; Grahn, T.; Julin, R.; Juutinen, S.; Konki, J.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Rahkila, P.; Sandzelius, M.; Saren, J.; Scholey, C.; Sorri, J.; Stolze, S.; Uusitalo, J.; Cederwall, B.; Aktaş, Özge; ERTOPRAK, Ayşegül; Liu, H.; Kuti, I; Timar, J.; Tucholski, A.; Srebrny, J.; Andreoiu, C.

doi:10.1103/physrevc.99.041301

Collective rotation of an oblate nucleus at very high spin

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Petrache C., Frauendorf S., Lv B. F., Astier A., Dupont E., Guo S., ...More

PHYSICAL REVIEW C, vol.99, no.4, 2019 (SCI-Expanded)

Publication Type: Article / Article
Volume: 99 Issue: 4
Publication Date: 2019
Doi Number: 10.1103/physrevc.99.041301
Journal Name: PHYSICAL REVIEW C
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Istanbul University Affiliated: Yes

Abstract

A sequence of nine almost equidistant quadrupole transitions is observed in Nd-137. The sequence represents an extremely regular rotational band that extends to a spin of about 75/2 and an excitation energy of approximate to 4.5 MeV above yrast. Cranked mean-field calculations of the Nilsson-Strutinsky type suggest an oblate shape for the band. They reproduce the observed I(I +1) dependence of the rotational energy whereas predicting a pronounced decrease in the deformation, which is the hallmark of antimagnetic rotation.