Lifetimes of high-spin states in 74Kr

• High-spin states in Kr-74 were studied using the 40Ca(40Ca,alpha 2p)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 muli-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 I=Imax.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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