Daniel Almehed

University of Surrey

'Nuclear tidal waves' in high-K bands in the 182-Os region

A number of high-K bands in osmium nuclei have an unusual behaviour in that they show irregular M1 and E2 transitions on top of the K-isomer. The transition energy does not show the expected dE ~ I behaviour but is approximately constant along the band. This has been interpreted as a coupling of collective rotation and gamma-vibrations (sometimes called nuclear tidal waves). I will show new results for some osmium and rhenium isotopes and discuss the conditions needed for this novel type of nuclear excitation.

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