Coupling constants g alpha(0)omega gamma and g alpha(0)p gamma as derived from QCD sum rules


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Gokalp A., Yilmaz O.

EUROPEAN PHYSICAL JOURNAL C, vol.22, no.2, pp.323-326, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 2
  • Publication Date: 2001
  • Doi Number: 10.1007/s100520100801
  • Title of Journal : EUROPEAN PHYSICAL JOURNAL C
  • Page Numbers: pp.323-326

Abstract

We consider the two point correlation function of a scalar current in the QCD sum rule approach to estimate the overlap amplitude of the a(o)-meson. We then employ QCD sum rules to calculate the coupling constants g(omegaaogamma) and g(rhoaogamma) by studying the three point a(o)omegagamma- and a(o)rhogamma-correlation functions.