OCTUPOLE COLLECTIVITY AND SPIN DEPENDENCE OF THE E1 TRANSITION MOMENTS IN SM-150

Authors
ANDREJTSCHEFF W DOLL C BECVAR F BORNER HG
Citation
W. Andrejtscheff et al., OCTUPOLE COLLECTIVITY AND SPIN DEPENDENCE OF THE E1 TRANSITION MOMENTS IN SM-150, Physics letters. Section B, 437(3-4), 1998, pp. 249-256
Citations number
34
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
437
Issue
3-4
Year of publication
1998
Pages
249 - 256
Database
ISI
SICI code
0370-2693(1998)437:3-4<249:OCASDO>2.0.ZU;2-5
Abstract
The lifetimes of the lowest 1(-), 3(-), 5(-) and 7(-) states in Sm-150 are measured in the (n(th), gamma) reaction with the GRID method. Abo ve these up to spin J = 18, B(E1) values are estimated from experiment al B(E1)/B(E2) ratios. The E1 transition moments peak at J = 5-7 and a re lowest in the region 11 less than or equal to J less than or equal to 15 where previous studies suggest enhanced octupole collectivity. O bserved is a staggering of the El moments with odd and even J values. (C) 1998 Elsevier Science B.V. All rights reserved.