The decay rho(0) -> pi(0)pi(0)gamma and the role of sigma-meson

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Gokalp A., Yilmaz O.

PHYSICS LETTERS B, vol.508, no.1-2, pp.25-30, 2001 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 508 Issue: 1-2
  • Publication Date: 2001
  • Doi Number: 10.1016/s0370-2693(01)00311-2
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.25-30
  • Middle East Technical University Affiliated: Yes


We study the radiative decay p(0) --> pi (0)pi (0)gamma within the framework of a phenomenological approach in which the contributions of sigma -meson and omega -meson intermediate states and of the pion-loops are considered. We conclude that the sigma -meson amplitude makes a substantial contribution. (C) 2001 Elsevier Science B.V. All rights reserved.