Effects of Coriolis and residual neutron-proton interactions in the proton emission from 130Eu

We present for the first time, the non-adiabatic quasiparticle approach to study proton emission from odd-odd deformed nuclei which includes the residual neutron-proton interaction. We perform exact calculations of decay widths for the proton emission from 130Eu where the Coriolis effects are included in both the parent and daughter wavefunctions. Without assuming an exact Nilsson state from where the decay could happen, we could explain the experimentally observed half-life. We discuss the interplay between the Coriolis and the residual np interaction as well. This is significant because whereas most of the studies on odd-odd nuclei concern only the energies, a description of decay can test the details of the wavefunctions which may be strongly influenced by the residual interaction.