Anomalous isomeric decays in 174Lu as a probe of K mixing and interactions in deformed nuclei |
| |
Authors: | Dracoulis G D Kondev F G Lane G J Byrne A P McGoram T R Kibédi T Ahmad I Carpenter M P Janssens R V F Lauritsen T Lister C J Seweryniak D Chowdhury P Tandel S K |
| |
Institution: | Department of Nuclear Physics, R.S. Phys. S.E., Australian National University, Canberra, A.C.T. 0200 Australia. |
| |
Abstract: | A K(pi)=13+, 280 ns four-quasiparticle isomer in the odd-odd nucleus 174Lu has been identified and characterized. The isomer decays to both K(pi)=7(+) and K(pi)=0(+) rotational bands obtained from the parallel and antiparallel coupling of the proton 7/2+404] and neutron 7/2+633] orbitals. K mixing caused by particle-rotation coupling explains the anomalously fast transition rates to the 7+ band but those to the 0+ band are caused by a chance degeneracy between the isomer and a collective state, allowing the mixing matrix element for a large K difference to be deduced. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|