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29 March 2024
 
  » pubmed » pmid17025957

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Anomalous isomeric decays in 174Lu as a probe of K mixing and interactions in deformed nuclei
G D Dracoulis ; F G Kondev ; G J Lane ; A P Byrne ; T R McGoram ; T Kibédi ; I Ahmad ; M P Carpenter ; R V F Janssens ; T Lauritsen ; C J Lister ; D Seweryniak ; P Chowdhury ; S K Tandel ;
Date 22 Sep 2006
Journal Phys Rev Lett, 97 (12), 122501
AbstractA 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.
Source PubMed, pmid17025957
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