Recoil isomer tagging on proton-rich odd-odd N=77 isotones Tb-142 and Ho-144

Authors
Scholey, C Cullen, DM Paul, ES Bentley, MA Boston, AJ Bruce, AM Butler, PA Caamano, M Greenleese, PT Helariutta, K Jones, PM Joss, DT Julin, R Juutinene, S Kankaanpaa, H Kettunen, H Kuusiniemi, P Leino, R Muikku, M Nieminen, P Rahkila, P Scraggs, HC Shepherd, SL Stezowski, O Uusitalo, J Walker, PM
Citation
C. Scholey et al., Recoil isomer tagging on proton-rich odd-odd N=77 isotones Tb-142 and Ho-144, ACT PHY P B, 32(3), 2001, pp. 1005-1008
Citations number
11
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
32
Issue
3
Year of publication
2001
Pages
1005 - 1008
Database
ISI
SICI code
0587-4254(200103)32:3<1005:RITOPO>2.0.ZU;2-I
Abstract
The isomeric structure of tile N = 77 isotones Tb-142(65) and Ho-144(67) ha ve been studied with the Mo-92(Fe-54, xpn) fusion evaporation reaction at t ile University of Jyvaskyla. The Jurospehere II germanium array was employe d in conjunction with the RITU gas filled recoil separator. The feeding and decay of a 500(20) ns isomeric state in Ho-144 have been established for t he first time together with states built upon the known 15 mus isomer in Tb -142. The behavior of these new structures above the isomers suggest that t hey are low deformation configurations which display signs of triaxiality.