σ-Meson and ω-ρ mixing effects in ω → π+π-γ decay


Gokalp A., Kucukarslan A., Solmaz S., YILMAZ O.

Acta Physica Polonica B, cilt.34, sa.8, ss.4095-4104, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 8
  • Basım Tarihi: 2003
  • Dergi Adı: Acta Physica Polonica B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4095-4104
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Hayır

Özet

We calculate the branching ratio of ω → π+π-γ decay in a phenomenological framework in which the contributions of VMD, chiral loops, σ-meson intermediate state amplitudes and the effects of ω-ρ mixing are considered. We conclude that the σ-meson intermediate state amplitude and ω-ρ mixing make substantial contribution to the branching ratio.