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Spin content of the nucleon in a non-topological chiral soliton model

  • Hadron Physics
  • Published:
Zeitschrift für Physik A Atomic Nuclei

Abstract

The spin content of the proton is investigated by studying the flavor singlet axial structure of the nucleon in a non-topological chiral soliton model. In order to construct a nucleon state we used the generator coordinate projection method as well as a coherent state for the meson wave function. Using a standard set of parameters we found the value g 0A ≃ 0.44 for the flavor singlet axial vector coupling constant. This result is not far from that of a typical valence quark model.

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Author notes

  1. A. Hosaka

    Present address: Department of Physics, University of Pennsylvania, 19104, Philadelphia, PA, USA

Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Regensburg, Universitätsstrasse 31, W-8400, Regensburg, Germany

    A. Hosaka & T. Schäfer

  2. Institut für Theoretische Physik, Universität Gießen, W-6300, Gießen, Germany

    U. Kalmbach

Authors
  1. A. Hosaka
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  2. T. Schäfer
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  3. U. Kalmbach
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Additional information

Work supported in part by DFG grant We 665/9-3

We thank W. Weise for useful discussions and comments. A.H. is grateful to R. Amado and M. Oka for discussions and a careful reading of the manuscript.

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Hosaka, A., Schäfer, T. & Kalmbach, U. Spin content of the nucleon in a non-topological chiral soliton model. Z. Physik A - Atomic Nuclei 337, 447–450 (1990). https://doi.org/10.1007/BF01294982

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  • DOI: https://doi.org/10.1007/BF01294982

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