Including virtual photons in strong interactions

  • A. Rusetsky
Conference paper

Abstract

In the perturbative field-theoretical models we investigate the inclusion of the electromagnetic interactions into the purely strong theory that describes hadronic processes. In particular, we study the convention for splitting electromagnetic and strong interactions and the ambiguity of such a splitting. The issue of the interpretation of the parameters of the low-energy effective field theory in the presence of electromagnetic interactions is addressed, as well as the scale and gauge dependence of the effective theory couplings. We hope, that the results of these studies are relevant for the electromagnetic sector of ChPT.

Keywords

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • A. Rusetsky
    • 1
    • 2
  1. 1.Institute for Theoretical PhysicsUniversity of BernBernSwitzerland
  2. 2.High Energy Physics InstituteTbilisi State UniversityTbilisiGeorgia

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