Proton versus neutron excitations in the high-spin spectrum of 102Cd -: art. no. 054304

Using the reaction Ni-58(Cr-50,alpha 2p) and the coincidence recoil distance Doppler shift technique, we determined picosecond lifetimes of high-spin states in Cd-102. The positive-parity yrast and yrare cascades evidence the competition and interplay of the two proton holes in the g(9/2) orbit and four neutrons in the d(5/2) g(7/2) and h(11/2) orbits, outside the Z = N = 50 Sn-100 core. At positive parity, this interplay leads to multiplets of states in the spin range 6(+)-10(-). some of which are connected by very weak E2 transitions. Al higher spins, spin-aligned proton holes and neutrons lead to magnetic rotation. Energies and transition strengths when compared with the predictions of several shell model calculations reveal the high sensitivity on the model parameters.