It has been observed that the decay rate for proton emission from d3/2 single particle state is systematically quenched compared with the prediction of a one-dimensional potential model although the same model successfully accounts for measured decay rates from s1/2 and h11/2 states. We reconcile this discrepancy by solving coupled-channels equations, taking into account couplings between the proton motion and vibrational excitations of a daughter nucleus. We apply the formalism to proton emitting nuclei 160,161Re to show that there is a certain range of parameter set of the excitation energy and the dynamical deformation parameter for the quadrupole phonon excitation which reproduces simultaneously the experimental decay rates from the 2d3/2, 3s 1/2, and 1 h 11/2 states in these nuclei.
|Number of pages||5|
|Journal||Physical Review C - Nuclear Physics|
|Publication status||Published - 2001 Oct|
ASJC Scopus subject areas
- Nuclear and High Energy Physics