QCD sum rule analysis of the coupling constants g_ρηγ and g_ωηγ

2003/03/28 by C. Aydin, A. H. Yilmaz
Physics and Astronomy · #hep-ph

paper · pdf

published as Acta Phys.Polon. B34 (2003) 4145-4150 · 8 LateX pages, 5 ps figures

arxiv created 2003/03/28 · arxiv updated 2009/11/30

Abstract

The coupling constants g_ρηγ and g_ωηγ are calculated using QCD sum rules method by studying the three point ρηγ and ωηγ correlation functions. A comparison of the results with the values of the coupling constants that are deduced from the experimentally measured decay widths of ρ→ ηγ and ω→ ηγ decays is performed.

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