sigma-meson and omega-rho mixing effects in omega ->pi(+)pi(-)gamma decay

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

ACTA PHYSICA POLONICA B, vol.34, no.8, pp.4095-4104, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 8
  • Publication Date: 2003
  • Journal Name: ACTA PHYSICA POLONICA B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.4095-4104
  • Middle East Technical University Affiliated: Yes

Abstract

We calculate the branching ratio of omega --> pi(+)pi(-)gamma decay in a phenomenological framework in which the contributions of VMD, chiral loops, sigma-meson intermediate state amplitudes and the effects of omega-rho mixing axe considered. We conclude that the sigma-meson intermediate state amplitude-and omega-rho mixing make substantial contribution to the branching ratio.