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Mesonic degrees of freedom in nuclei and the definition of meson-exchange currents

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

We describe the nucleus by a meson-nucleon system. Starting from a covariant field theoretical Hamiltonian we derive an effective Schrödinger equation for the nucleonic components. The meson-exchange currents are then defined unarbitrarily by an effective operator (current) in the space of the nucleonic components. The advantage over theS-matrix method [1] is discussed. In the nonrelativistic limit the meson-current as well as the seagull (pair) current agrees with theS-matrix result. Recoil and wavefunction orthogonalization cancels completely in this limit.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Ruhr-Universität Bochum, Germany

    M. Gari & H. Hyuga

  2. Kernphysikalische Abteilung, Max-Planck-Institut für Chemie, Mainz

    M. Gari

Authors
  1. M. Gari
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  2. H. Hyuga
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Work supported by Minister für Wissenschaft und Forschung des Landes Nordrhein-Westfalen, Germany

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Gari, M., Hyuga, H. Mesonic degrees of freedom in nuclei and the definition of meson-exchange currents. Z Physik A 277, 291–297 (1976). https://doi.org/10.1007/BF01415604

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  • DOI: https://doi.org/10.1007/BF01415604

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