Theoretical description of deformed proton emitters: Nonadiabatic coupled-channel method

B. Barmore, A. T. Kruppa, W. Nazarewicz, and T. Vertse
Phys. Rev. C 62, 054315 – Published 17 October 2000
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Abstract

The newly developed nonadiabatic method based on the coupled-channel Schrödinger equation with Gamow states is used to study the phenomenon of proton radioactivity. The new method, adopting the weak coupling regime of the particle-plus-rotor model, allows for the inclusion of excitations in the daughter nucleus. This can lead to rather different predictions for lifetimes and branching ratios as compared to the standard adiabatic approximation corresponding to the strong coupling scheme. Calculations are performed for several experimentally seen, nonspherical nuclei beyond the proton dripline. By comparing theory and experiment, we are able to characterize the angular momentum content of the observed narrow resonance.

  • Received 18 July 2000

DOI:https://doi.org/10.1103/PhysRevC.62.054315

©2000 American Physical Society

Authors & Affiliations

B. Barmore1,2,3, A. T. Kruppa2,4, W. Nazarewicz1,3,5, and T. Vertse2,4

  • 1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
  • 2Joint Institute for Heavy Ion Research, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
  • 3Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831
  • 4Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, H-4001 Debrecen, Hungary
  • 5Institute of Theoretical Physics, Warsaw University, ul. Hoża 69, PL-00681 Warsaw, Poland

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Issue

Vol. 62, Iss. 5 — November 2000

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