Onset of high-spin rotational bands in the N=Z nucleus Ga62

Abstract

The fusion-evaporation reaction 28 Si + 40 Ca at 122 MeV beam energy was used to populate high-spin states in the odd-odd N = Z nucleus 62 Ga. With the combination of the Gammasphere spectrometer and the Microball CsI(Tl) charged-particle detector array the decay scheme of 62 Ga was extended beyond 10 MeV excitation energy. The onset of band structures was observed. These high-spin rotational states are interpreted and classified by means of cranked Nilsson-Strutinsky calculations.

General properties of terminating bands in the A = 110 and A = 160 mass regions

“…They were labeled in the A ∼ 110 mass region relative to the 100 Sn doubly magic core. For an odd number of particles, the signature should be given as subscript index '+' or '-' for α = ± , respectively [23,24].…”