Dynamical particle-phonon couplings in proton emission from spherical nuclei
Abstract
Description
We present results of coupled-channels calculations which are performed to understand the role of vibrational excitations of the daughter nucleus in proton emission decay of spherical nuclei. It is shown that the experimental decay rates from the 2$d_{3/2}$, 3$s_{1/2}$ and 1$h_{11/2}$ states in proton emitting nuclei $^{160,161}$Re are reproduced simultaneously when the quadrupole phonon excitation of the core nuclei is taken into account. We apply the formalism also to the $^{145}$Tm nucleus and show that good agreement is achieved with the recently measured branching ratio for the fine structure.
10 pages, 3 eps figures, uses psfig.sty and ptptex.sty. A talk given at the Yukawa International Seminar 2001 on "Physics of Unstable Nuclei", Nov. 2001, Kyoto, Japan
10 pages, 3 eps figures, uses psfig.sty and ptptex.sty. A talk given at the Yukawa International Seminar 2001 on "Physics of Unstable Nuclei", Nov. 2001, Kyoto, Japan