The strong decays of the light scalar mesons f(0)(500) and f(0)(980)

AGAEV S. S., Azizi K., Sundu H.

PHYSICS LETTERS B, vol.784, pp.266-270, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 784
  • Publication Date: 2018
  • Doi Number: 10.1016/j.physletb.2018.07.042
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.266-270
  • Kocaeli University Affiliated: Yes

Abstract

The partial width of the decay channels f(0)(500) ->pi pi, f(0)(980) -> pi pi and f(0)(980) -> K (K) over bar are calculated using QCD light-cone sum rules method and a technique of the soft meson approximation. The scalar particles are treated as mixtures of the heavy vertical bar H > =([su][(s) over bar (u) over bar] +[sd][(s) over bar(d) over bar])/root 2and light vertical bar L > =[ud][(u) over bar(d) over bar] scalar diquark-antidiquark components. Obtained results for the full width of the f(0)(500) meson Gamma(th) = 434.7 +/- 72.3MeVand for the f(0)(980) meson Gamma(th)= 42.12 +/- 6.70MeVare compared with the world averages for these parameters, and a reasonable agreement between them is found. (C) 2018 The Author(s). Published by Elsevier B.V.