Elsevier

Nuclear Physics A

Volume 530, Issue 2, 5 August 1991, Pages 347-369
Nuclear Physics A

Self-consistent solution of the second-order Dyson equation for single-particle propagators, with application to the spectral functions of 48Ca

https://doi.org/10.1016/0375-9474(91)90807-IGet rights and content

Abstract

We present a new method to describe the fragmentation of single-particle strength in the framework of the Green function formalism. By means of an iterative scheme, we are able to construct a self-consistent solution of the Dyson equation up to second order in the interaction. Damping effects, such as the broadening of the spectral function for deep-lying hole states, show up in a natural way. We apply the formalism to a schematic model and to the case of the doubly-closed shell nucleus 48Ca.

References (26)

  • G. van der Steenhoven et al.

    Nucl. Phys.

    (1988)
  • G.J. Kramer

    Phys. Lett.

    (1989)
  • G.J. Kramer et al.

    Nucl. Phys.

    (1988)
  • J.W.A. den Herder et al.

    Nucl. Phys.

    (1988)
  • C. Mahaux et al.

    Phys. Reports

    (1985)
  • V. Bernard et al.

    Nucl. Phys.

    (1980)
  • D. Van Neck et al.

    Phys. Lett.

    (1990)
  • M.G.E. Brand et al.

    Nucl. Phys.

    (1990)
  • M. Waroquier et al.

    Nucl. Phys.

    (1983)
  • M. Waroquier et al.

    Phys. Reports

    (1987)
  • C. Mahaux et al.

    Nucl. Phys.

    (1989)
  • S. Frullani et al.

    Adv. Nucl. Phys.

    (1984)
  • P.K.A. de Witt Huberts

    Nucl. Phys.

    (1990)
  • Cited by (0)

    1

    Research assistant NFWO.

    2

    Research Director NFWO.

    View full text