Elsevier

Nuclear Physics A

Volume 554, Issue 4, 29 March 1993, Pages 620-634
Nuclear Physics A

Nuclear-exchange-current operator and nucleon-nucleon interaction

https://doi.org/10.1016/0375-9474(93)90249-WGet rights and content

Abstract

Isovector exchange currents are constructed in a gauge-invariant way from a nucleon-nucleon potential by using an approach applicable to different components of the potential. The method is based on an extension of the use of minimal substitution to the isospin-dependent potential and the continuity equation. A one-pion-exchange potential is used as an example and the results are found to be in agreement with those obtained using field theory. One-pion-exchange effects in the electric dipole moment of a two-nucleon system is discussed and a modification of the Siegert theorem is found.

References (22)

  • P.G. Blunden

    Nucl. Phys.

    (1987)
  • A. Barroso et al.

    Nucl. Phys.

    (1975)
  • W. Jaus et al.

    Nucl. Phys.

    (1981)
  • E. Hadjimichael

    Phys. Lett.

    (1979)
  • R.H. Thompsom et al.

    Phys. Rev.

    (1973)
  • M.L. Rustgi et al.

    Phys. Rev.

    (1984)
  • M.L. Rustgi et al.

    Phys. Rev.

    (1989)
  • A. Cambi et al.

    Phys. Rev.

    (1981)
  • R.K. Osborn et al.

    Phys. Rev.

    (1950)
  • R.G. Sachs

    Phys. Rev.

    (1948)
  • F. Partovi

    Phys. Rev.

    (1987)
  • Cited by (0)

    Work supported in part by the Ministry of Culture and Higher Education of Iran and the Natural Sciences and Engineering Research Council of Canada.

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