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, cilt.19, ss.3011-3017, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 19 Konu: 40
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1142/s0217732304015178
  • Dergi Adı: MODERN PHYSICS LETTERS A
  • Sayfa Sayıları: ss.3011-3017

Özet

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.