The coupling constants gρπγ and gωπγ as derived from QCD sum rules
Physics Department, Middle East Technical University, 06531 Ankara, Turkey
Revised: 28 December 2001
Published online: 5 April 2002
We employ QCD sum rules to calculate the coupling constants gρπγ and gωπγ by studying the three point ρπγ and ωπγ correlation functions. Our results are in good agreement with the coupling constants gρπγ and gωπγ that are deduced utilizing the experimentally measured values of the Γ(ρ0 → π0γ) and Γ(ω → π0γ) decay widths.
© Società Italiana di Fisica, Springer-Verlag, 2002