The coupling constant g(ao pi eta) as derived from light-cone QCD sum rules

Gokalp A., Sarac Y., Yilmaz O.

MODERN PHYSICS LETTERS A, vol.19, no.40, pp.3011-3017, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 40
  • Publication Date: 2004
  • Doi Number: 10.1142/s0217732304015178
  • Title of Journal : MODERN PHYSICS LETTERS A
  • Page Numbers: pp.3011-3017


We investigate the a(0)pieta-vertex in the framework of light-cone QCD sum rules. We estimate the coupling constant g(a0pieta) which is an essential ingredient in the analysis of physical processes involving a(0)(980) meson. We determine the decay width of the a(0) --> pi(0)eta decay and compare our result with experimental value.