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The European Physical Journal A

, Volume 32, Issue 4, pp 403–407 | Cite as

Flavor content of nucleon form factors in a VMD approach

  • R. BijkerEmail author
PAVI 2006
  • 27 Downloads

Abstract.

The strange form factors of the nucleon are studied in a two-component model consisting of a three-quark intrinsic structure surrounded by a meson cloud. A comparison with the available experimental world data from the SAMPLE, PVA4, HAPPEX and G0 Collaborations shows a good overall agreement. It is shown that the strangeness contribution to the electric and magnetic form factors is of the order of a few percent. In particular, the strange quark contribution to the charge radius is small 〈r 2 sE = 0.005 fm^2 and to the magnetic moment it is positive μs = 0.315 μN .

PACS.

13.40.Gp Electromagnetic form factors 12.40.Vv Vector-meson dominance 14.20.Dh Protons and neutrons 13.40.Em Electric and magnetic moments 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  1. 1.Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de MéxicoMéxico DFMexico

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