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, sa.40, ss.3011-3017, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 40
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1142/s0217732304015178
  • Dergi Adı: MODERN PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3011-3017
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

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.