Proton emitters140Hoand141Ho: Probing the structure of unbound Nilsson orbitals

Abstract
Two new proton emitting states in the deformed nuclei 140Ho (Ep=1086±10keV, T1/2=6±3ms) and 141mHo (Ep=1230±20keV, T1/2=8±3μs) have been identified. Experimental data are interpreted using the coupled-channels Schrödinger equation with outgoing wave boundary conditions. The observed resonances are discussed in terms of deformed single-proton orbitals close to the Z=67 Fermi level.