Skip to main content
SpringerLink
Log in

Nucleon magnetic moments in an extended chiral constituent quark model

  • Published:
The European Physical Journal A Aims and scope Submit manuscript

Abstract

We present results for the nucleon magnetic moments in the context of an extended chiral constituent quark model based on the mechanism of the Goldstone boson exchange, as suggested by the spontaneous breaking of chiral symmetry in QCD. The electromagnetic charge-current operator is consistently deduced from the model Hamiltonian, which includes all force components for the pseudoscalar, vector and scalar meson exchanges. Thus, the continuity equation is satisfied for each piece of the interaction, avoiding the introduction of any further parameter. A good agreement with experimental values is found. The role of isoscalar two-body operators, not constrained by the continuity equation, is also investigated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. L.Ya. Glozman, D.O. Riska, Phys. Rep. 268, 1 (1996).

    Article  Google Scholar 

  2. R.F. Wagenbrunn, W. Plessas, L.Ya. Glozman, K. Varga, Nucl. Phys. A 663–664, 703 (2000).

    Article  Google Scholar 

  3. R.F. Wagenbrunn, W. Plessas, L.Ya. Glozman, K. Varga, Nucl. Phys. A 666–667, 29 (2000).

    Article  Google Scholar 

  4. A. De Rújula, H. Georgi, S.L. Glashow, Phys. Rev. D 12, 147 (1975).

    Article  ADS  Google Scholar 

  5. N. Isgur, G. Karl, Phys. Rev. D 18, 4187 (1978).

    Article  ADS  Google Scholar 

  6. M.M. Giannini, Rep. Progr. Phys. 54, 453 (1990).

    Article  ADS  Google Scholar 

  7. G. Karl, Int. J. Mod. Phys. E 1, 491 (1992).

    Article  ADS  Google Scholar 

  8. M. Warns, H. Schröder, W. Pfeil, H. Rollnik, Z. Phys. C 45, 613 (1990).

    Article  ADS  Google Scholar 

  9. S. Capstick, Phys. Rev. D 46, 2864 (1992).

    Article  ADS  Google Scholar 

  10. F. Cardarelli, E. Pace, G. Salmè, S. Simula, Phys. Lett. B 357, 267 (1995).

    Article  ADS  Google Scholar 

  11. A. Szczepaniak, C.-R. Ji, S.R. Cotanch, Phys. Rev. C 52, 2738 (1995).

    Article  ADS  Google Scholar 

  12. F. Schlumpf, J. Phys. G 20, 237 (1994).

    Article  ADS  Google Scholar 

  13. A. Buchmann, E. Hernandez, A. Faessler, Phys. Rev. C 55, 448 (1997).

    Article  ADS  Google Scholar 

  14. A. Valcarce, P. Gonzáles, F. Fernández, V. Vento, Phys. Lett. B 367, 35 (1996).

    Article  ADS  Google Scholar 

  15. Z. Dziembowski, M. Fabre de la Ripelle, G.A. Miller, Phys. Rev. C 53, R2038 (1996).

    Article  ADS  Google Scholar 

  16. P.N. Shen, Y.B. Dong, Z.Y. Zhang, Y.W. Yu, T.-S.H. Lee, Phys. Rev. C 55, 2024 (1997).

    Article  ADS  Google Scholar 

  17. F.E. Close, An Introduction to Quarks and Partons (Academic Press, New York 1979).

    Google Scholar 

  18. N. Isgur, G. Karl, Phys. Rev. D 21, 3175 (1980).

    Article  ADS  Google Scholar 

  19. H. Georgi, A. Manohar, Phys. Lett. B 132, 183 (1983).

    Article  ADS  Google Scholar 

  20. G. Karl, Phys. Rev. D 45, 247 (1992).

    Article  ADS  Google Scholar 

  21. J. Linde, H. Snellman, Z. Phys. C 64, 73 (1994).

    Article  ADS  Google Scholar 

  22. J. Franklin, Phys. Rev. D 30, 1542 (1984).

    Article  ADS  Google Scholar 

  23. J. Cohen, H.J. Weber, Phys. Lett. B 165, 229 (1985).

    Article  ADS  Google Scholar 

  24. G. Wagner, A.J. Buchmann, A. Faessler, Phys. Lett. B 359, 288 (1995).

    Article  ADS  Google Scholar 

  25. P.L. Chung, F. Coester, Phys. Rev. D 44, 229 (1991).

    Article  ADS  Google Scholar 

  26. F. Schlumpf, Phys. Rev. D 47, 4114 (1993).

    Article  ADS  Google Scholar 

  27. S. Capstick, B.D. Keister, Phys. Rev. D 51, 3598 (1995); nucl-th/9611055.

    Article  ADS  Google Scholar 

  28. S. Boffi, F. Capuzzi, P. Demetriou, M. Radici, Nucl. Phys. A 637, 585 (1998).

    Article  ADS  Google Scholar 

  29. P. Demetriou, S. Boffi, M. Radici, R.F. Wagenbrunn, Proceedings of the Second International Conference on Perspectives in Hadronic Physics, Trieste, 1999, edited by S. Boffi, C. Ciofi degli Atti, M.M. Giannini (World Scientific, Singapore 2000), p. 235.

    Google Scholar 

  30. I.S. Towner, Phys. Rep. 155, 263 (1987).

    Article  ADS  Google Scholar 

  31. S. Boffi, P. Demetriou, M. Radici, R.F. Wagenbrunn, Phys. Rev. C 60, 025206 (1999).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, via Bassi 6, I27100, Pavia, Italy

    R. F. Wagenbrunn, M. Radici & S. Boffi

  2. INFN, Sezione di Pavia, via Bassi 6, I27100, Pavia, Italy

    M. Radici & S. Boffi

  3. Institutes of Nuclear Physics, N.C.S.R. “Demokritos”, Aghia Paraskevi, GR-156 10, Athens, Greece

    P. Demetriou

Authors
  1. R. F. Wagenbrunn
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Radici
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S. Boffi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Demetriou
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to R. F. Wagenbrunn.

Additional information

Communicated by V.V. Anisovich

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wagenbrunn, R.F., Radici, M., Boffi, S. et al. Nucleon magnetic moments in an extended chiral constituent quark model. Eur. Phys. J. A 8, 385–388 (2000). https://doi.org/10.1007/s10050-000-5075-8

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10050-000-5075-8

PACS

Search

Navigation