Possible octupole correlation in Pr-147 and pi h(11/2) bands in Pr-149,Pr-151 - art. no. 044303

Authors
Hwang, JK Ramayya, AV Hamilton, JH Jones, EF Gore, PM Zhu, SJ Beyer, CJ Kormicki, J Zhang, XQ Peker, LK Babu, BRS Ginter, TN Ter-Akopian, GM Oganessian, YT Daniel, AV Ma, WC Varmette, PG Rasmussen, JO Lee, IY Cole, JD Aryaeinejad, R Drigert, MW Stoyer, MA Prussin, SG Donangelo, R Griffin, HC
Citation
Jk. Hwang et al., Possible octupole correlation in Pr-147 and pi h(11/2) bands in Pr-149,Pr-151 - art. no. 044303, PHYS REV C, 6204(4), 2000, pp. 4303
Citations number
16
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
05562813 → ACNP
Volume
6204
Issue
4
Year of publication
2000
Database
ISI
SICI code
0556-2813(200010)6204:4<4303:POCIPA>2.0.ZU;2-G
Abstract
Neutron-rich Pr-147,Pr-149,Pr-151 nuclei, produced in the spontaneous fissi on of Cf-252, were studied using the Gammasphere array. Possible parity dou blets in Pr-147 With N = 88 and pi h(11/2) bands in Pr-149,Pr-151 are propo sed. These new data on the level structures of odd Pr isotopes suggest that octupole correlations may also be present in the neutron-rich Pr-147(59)88 nucleus such as those observed in Ce-146(58)88, and also that the h(11/2) bands in the Pr-149,Pr-151 track in energy the yrast bands in Ce-148,Ce-150 . The backbending related to the breaking of the neutron i(13/2) pair is ob served at (h) over bar omega approximate to 0.27 (MeV) for the proton h(11/ 2) band of Pr-149.