Why the f(0)(980) is mostly ssbar
  We exploit the W-emission process to study the measured weak decay of the D(s,+)(1.9686) meson into f(0)(980) and a positively charged pion. We conclude that the scalar f(0)(980) meson contains mostly strange-antistrange flavors, which is supported by different model studies. 
Eef van Beveren (University of Coimbra, Portugal), George Rupp   (Instituto Superior Tecnico, Lisboa, Portugal) and Michael ...