Coupled-channels treatment of deformed proton emitters

Phys. Rev. C 63, 014315 – Published 20 December 2000
Henning Esbensen and Cary N. Davids

Abstract

The structure of deformed proton emitters is studied in a coupled-channels treatment. The wave function of a decaying state is determined as a standing wave, i.e., for an energy that is real. The decay rate is calculated from a Green’s function method, treating the influence of the long-range Coulomb multipole interactions to first order. The results are compared to predictions made in the adiabatic limit and to measurements. It is shown that the decay of the 131Eu(3/2+) ground state to the ground state of 130Sm is quite sensitive to deformation in the spin-orbit force. It is found that the ground state decay of 141Ho(7/2-) is poorly described in the coupled-channels approach. This is ascribed to Coriolis mixing, which is too strong in the absence of pairing effects.

DOI: http://dx.doi.org/10.1103/PhysRevC.63.014315

  • Received 30 June 2000
  • Published 20 December 2000

© 2000 The American Physical Society

Authors & Affiliations

Henning Esbensen and Cary N. Davids

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

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