The coupling constants g(rho pi gamma) and g(omega pi gamma) as derived from QCD sum rules


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Gokalp A., Yilmaz O.

EUROPEAN PHYSICAL JOURNAL C, vol.24, no.1, pp.117-120, 2002 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 1
  • Publication Date: 2002
  • Doi Number: 10.1007/s100520200934
  • Title of Journal : EUROPEAN PHYSICAL JOURNAL C
  • Page Numbers: pp.117-120

Abstract

We employ QCD sum rules to calculate the coupling constants g(rhopigamma) and g(rhopigamma) by studying the three point rhopigamma and omegapigamma correlation functions. Our results are in good agreement with the coupling constants g(rhopigamma) and g(omegapigamma) that are deduced utilizing the experimentally measured values of the Gamma(rho(0) --> pi(0)gamma) and Gamma(omega --> pi(0)gamma) decay widths.