Short note
Identification of a high-K isomer in neutron-rich 185Ta
C. Wheldon1 - P.M. Walker1 - R. D'Alarcao2 - P. Chowdhury2 - C.J. Pearson1 - E.H. Seabury2 - I. Ahmad3 - M.P. Carpenter3 - D.M. Cullen4 - G. Hackman3 - R.V.F. Janssens3 - T.L. Khoo3 - D. Nisius3 - P. Reiter3
1 Department of Physics, University of Surrey, Guildford, Surrey GU2 5XH, UK
2 University of Massachusetts, Lowell, MA 01854, USA
3 Argonne National Laboratory, Argonne, IL 60439, USA
4 Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69
7ZE, UK
Received: 11 May 1999 Communicated by B. Herskind
Abstract
A t1/2>1 ms,
high-K isomeric state feeding a strongly coupled
rotational band has been identified following the deep
inelastic reaction U +
W at 1600 MeV.
Examination of
-ray and X-ray data combined
with a g-factor analysis derived from in-band
branching ratios suggests the assignment of the new
states to the neutron-rich nucleus
Ta.
PACS
21.10.Tg Lifetimes -
23.20.Lv Gamma transitions and level energies -
27.70.+q
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