Exact dynamical approach to spherical ground-state proton emitters

P. Talou, N. Carjan, C. Negrevergne, and D. Strottman
Phys. Rev. C 62, 014609 – Published 19 June 2000
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Abstract

The proton emission from ground-state spherical nuclei is investigated exactly through the numerical solution of the time-dependent Schrödinger equation for initial single-proton quasistationary states. Contrary to common belief, it is shown that such calculations can be performed for any proton half-life ranging from 102220s, the longest proton lifetime observed at present. The important and careful choice of the initial metastable state is clarified. Applied to the calculation of the decay width of several ground-state spherical emitters, this method gives comparable results with the distorted wave-Born approximation and therefore justifies its use.

  • Received 14 December 1999

DOI:https://doi.org/10.1103/PhysRevC.62.014609

©2000 American Physical Society

Authors & Affiliations

P. Talou1,*, N. Carjan2, C. Negrevergne2,3, and D. Strottman1,4

  • 1Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • 2CEN Bordeaux-Gradignan, F-33175 Gradignan Cedex, France
  • 3Center for Non Linear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • 4LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

  • *Electronic address: talou@lanl.gov

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Vol. 62, Iss. 1 — July 2000

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