Abstract
It has been observed that the decay rate for proton emission from 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 and 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 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 and states in these nuclei.
- Received 11 May 2001
DOI:https://doi.org/10.1103/PhysRevC.64.041304
©2001 American Physical Society