Dynamical particle-phonon couplings in proton emission from spherical nuclei

Details Dynamical particle-phonon couplings in proton emission from spherical nuclei Dynamical particle-phonon couplings in proton emission from spherical nuclei

2002-01-17

arxiv.org/abs/nucl-th/0201039v1

Prog.Theor.Phys.Suppl.146:348-357,2003

Physics

Nuclear Physics

Nuclear Theory

10 pages, 3 eps figures, uses psfig.sty and ptptex.sty. A talk given at the Yukawa International Seminar 2001 on "Physics of U

Scientific paper

10.1143/PTPS.146.348

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.

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