Lifetimes of high-spin states in 74Kr.

Authors :: Valiente-Dobón, J. J.
Svensson, C. E.
Steinhardt, T.
Afanasjev, A. V.
Ragnarsson, I.
Andreoiu, C.
Austin, R. A. E.
Carpenter, M. P.
Dashdorj, D.
de Angelis, G.
Dönau, F.
Eberth, J.
Farnea, E.
Freeman, S. J.
Gadea, A.
Garrett, P. E.
Görgen, A.
Grinyer, G. F.
Hyland, B.
Jenkins, D.
Source :: AIP Conference Proceedings; 2006, Vol. 831 Issue 1, p283-287, 5p, 1 Chart, 1 Graph
Publication Year :: 2006
Abstract: High-spin states in <subscript>36</subscript><superscript>74</superscript>Kr<subscript>38</subscript> were studied using the 40Ca(40Ca,α2p)74Kr fusion evaporation reaction at a beam energy of 165 MeV with GAMMASPHERE and MICROBALL and at a beam energy of 185 MeV with EUROBALL and ISIS multi-detector arrays. Lifetimes of the high-spin states for the ground-state band and the favoured negative-parity band have been determined using the Doppler-shift attenuation method. The deduced transition quadrupole moments show a marginal decrease as a function of spin, suggesting that the rotational bands do not terminate at the maximum spin Imax. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]