Elsevier

Physics Letters B

Volume 335, Issues 3–4, 8 September 1994, Pages 313-318
Physics Letters B

Excited bands in the doubly-magic superdeformed 152Dy nucleus: evidence for the first N = 7 proton hyper-intruder orbital

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Abstract

Five excited superdeformed bands have been observed in the doubly closed-shell superdeformed nucleus 152Dy. Three of the new bands are interpreted in terms of single neutron excitations across the N = 86 shell gap. One of these bands appears to partly decay into the yrast superdeformed band. Another band involves a single proton excitation across the Z = 66 shell gap into the N = 7 hyper-intruder orbital. This is the first evidence of the influence of this deformation driving orbital on superdeformed structures in any mass region.

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