Elsevier

Nuclear Physics A

Volume 574, Issue 3, 11 July 1994, Pages 560-574
Nuclear Physics A

Lifetimes of the superdeformed band in 192Hg

https://doi.org/10.1016/0375-9474(94)90244-5Get rights and content

Abstract

Lifetimes of states in the superdeformed band in 192Hg have been measured using the Doppler-shift attenuation and the recoil-distance methods for the high-spin and the low-spin regions, respectively. Line shapes and decay curves were obtained from high-fold γ-ray coincidence spectra measured with the EUROGAM array. The transition quadrupole moments, derived from the lifetimes, are constant with an average value of Qt = 18.6 b down to the bottom of the band where it decays to the normal states. This suggests that the superdeformed potential-energy minimum is still present at that point and that the decay proceeds by tunneling.

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