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Long distance effects and strangeness in the nucleon
Fizika B
  • John Donoghue, University of Massachusetts - Amherst
  • Barry Holstein
  • Tobias Huber
  • Andreas Ross
Publication Date
2005
Abstract
We discuss the calculation of the strange magnetic radius of the proton in chiral perturbation theory. In particular, we investigate the low-energy component of the loop integrals involving kaons. We separate the chiral calculation into a low-energy part and a high-energy component through use of a momentum space separation scale. This separation shows that most of the chiral calculation comes from high energies where the effective field theory treatment is not valid. The resulting low-energy prediction is in better agreement with dispersive treatments. Finally, we briefly discuss magnetic moments and show how our techniques can help resolve an old puzzle in understanding the magnetic moments of the proton and S+
Disciplines
Comments
This is the pre-published version which is collected from arXiv. The published version is at http://fizika.hfd.hr/fizika_b/bv05/b14p217.htm
Pages
217-234
Citation Information
John Donoghue, Barry Holstein, Tobias Huber and Andreas Ross. "Long distance effects and strangeness in the nucleon" Fizika B Vol. 14 Iss. 2 (2005)
Available at: http://works.bepress.com/barry_holstein/144/