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Role of dynamical particle-vibration coupling in reconciliation of the d3/2 puzzle for spherical proton emitters

K. Hagino
Phys. Rev. C 64, 041304(R) – Published 20 September 2001
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Abstract

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, 3s1/2, and 1h11/2 states in these nuclei.

  • Received 11 May 2001

DOI:https://doi.org/10.1103/PhysRevC.64.041304

©2001 American Physical Society

Authors & Affiliations

K. Hagino

  • Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan

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Vol. 64, Iss. 4 — October 2001

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