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The electric form factor of the neutron and its chiral content

  • M. M. Kaskulov
  • P. GrabmayrEmail author
Letter

Abstract.

Considering the nucleon as a system of confined valence quarks surrounded by pions we derive a Galster-like parameterization of the neutron electric form factor G E n . Furthermore, we show that the proposed parameterization can be linked to properties of the pion cloud. By this, the high-quality data for the pion form factor can be used in predictions of G E n in the low-Q 2 region, where the direct double-polarization measurements are not available.

Keywords

Form Factor Valence Quark Pion Form Factor Electric Form Factor Pion Cloud 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R. Hofstadter, R. Herman, Phys. Rev. Lett. 15, 293 (1961)CrossRefGoogle Scholar
  2. 2.
    E.J. Brash, Phys. Rev. C 65, 051001(R) (2001).CrossRefGoogle Scholar
  3. 3.
    J.J. Kelly, Phys. Rev. C 66, 065203 (2002).CrossRefGoogle Scholar
  4. 4.
    J. Friedrich, T. Walcher, Eur. Phys. J. A 17, 607 (2003).Google Scholar
  5. 5.
    Haiyan Gao, Int. J. Mod. Phys. E 12, 1 (2003).CrossRefGoogle Scholar
  6. 6.
    M.M. Kaskulov, P. Grabmayr, Phys. Rev. C 67, 042201(R) (2003).CrossRefGoogle Scholar
  7. 7.
    E. Fermi, L. Marschall, Phys. Rev. 72, 1139 (1947).CrossRefGoogle Scholar
  8. 8.
    L.L. Foldy, Phys. Rev. 87, 688Google Scholar
  9. 9.
    S. Kopecky, Phys. Rev. C 56, 2220 (1997).CrossRefGoogle Scholar
  10. 10.
    N. Isgur, Phys. Rev. Lett. 83, 272 (1999).Google Scholar
  11. 11.
    D.B. Leinweber, A.W. Thomas, R.D. Young, Phys. Rev. Lett. 86, 5011 (2001).CrossRefGoogle Scholar
  12. 12.
    S. Galster, Nucl. Phys. B 32, 221 (1971).CrossRefGoogle Scholar
  13. 13.
    S. Platchkov, Nucl. Phys. A 570, 740 (1990).CrossRefGoogle Scholar
  14. 14.
    G E n data compiled in table 1 of ref. [4].Google Scholar
  15. 15.
    P. Grabmayr, A.J. Buchmann, Phys. Rev. Lett. 86, 2237 (2001).CrossRefGoogle Scholar
  16. 16.
    R. Schiavilla, I. Sick, Phys. Rev. C 64, 041002 (2001).CrossRefGoogle Scholar
  17. 17.
    G.A. Miller, Phys. Rev. C 66, 032201 (2002).CrossRefGoogle Scholar
  18. 18.
    A.W. Thomas, W. Weise, The Structure of the Nucleon (Wiley-VCH, Berlin, 2001).Google Scholar
  19. 19.
    C.J. Bebek, Phys. Rev. 17, 1693 (1978).CrossRefGoogle Scholar
  20. 20.
    J. Volmer, Phys. Rev. Lett. 86, 1713 (2001).CrossRefGoogle Scholar
  21. 21.
    S.R. Amendolia, Nucl. Phys. B 277, 168 (1986).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Physikalisches InstitutUniversität TübingenTübingenGermany

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