Instanton effects in the decay of scalar mesons

Jan, 1996
9 pages
Published in:
  • Phys.Lett.B 380 (1996) 431-436
e-Print:
Report number:
  • BONN-TK-96-03

Citations per year

1996200020042008201202468
Abstract:
We show that instanton effects may play a crucial role in the decay of scalar mesons into two pseudoscalars. Particularly the branching ratios of two meson decays of the f0(1500)f_0(1500), which is considered as a glue-ball candidate, are then compatible with an ordinary qqˉq \bar{q}-structure of this resonance and a small positive SU(3) mixing angle, close to a result recently calculated with the same instanton-induced force.
Note:
  • 9 pages, uuencoded latex including two figures Report-no: Bonn Tk-96-03
  • scalar meson: hadronic decay
  • hadronic decay: scalar meson
  • scalar meson: branching ratio
  • scalar meson: width
  • effect: instanton
  • vertex function: (6quark)
  • symmetry: SU(3)
  • mixing angle
  • quark: relativistic
  • postulated particle: f0(1500)
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