Structure of the yrast band in the odd-odd deformed nucleus 156Pm

摘要

The six-level sequence deduced for the odd-odd nucleus 156Pm in the high-spin studies following spontaneousnfission of 252Cf is shown to constitute the Kπ = 4+ yrast band having the two-quasiparticle configurationn{p:5/2[532] + n:3/2[521]}. Spin parities I π = 4+ through 9+ are assigned to the earlier suggested sixnlevels. The location and the decay γ ’s of the 10+ level of this band are indicated. It is also pointed outnthat there are no γ rays common to these postfission high-spin spectra and those seen in the 156Nd β-decaynstudies.