Nonadiabatic quasiparticle description of triaxially deformed proton emitters

Exact calculations are performed for proton emission from triaxial nuclei by extending the nonadiabatic quasiparticle method to include the triaxial degree of freedom. We present for the first time a proper formalism for triaxial proton emitters, which includes the treatment of the pairing residual interaction and the coupling with the excited states of the daughter nucleus. The results for the nuclei 161Re and 185Bi are discussed. In contrast to an earlier prediction, where this problem was addressed with approximate methods, a weak dependance on triaxial deformation, especially in the nonadiabatic case, is found.