Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2001-05-11
Phys.Rev. C64 (2001) 041304
Physics
Nuclear Physics
Nuclear Theory
RevTex, 12 pages, 4 eps figures
Scientific paper
10.1103/PhysRevC.64.041304
It has been observed that decay rate for proton emission from $d_{3/2}$ 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 $s_{1/2}$ and $h_{11/2}$ 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 $^{160,161}$Re 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 2$d_{3/2}$, 3$s_{1/2}$ and 1$h_{11/2}$ states in these nuclei.
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