Inclusive production of the f0(980), f2(1270) and φ (1020) resonances has been studied in a sample of 4.3 million hadronic Z0 decays from the OPAL experiment at LEP. A coupled channel analysis has been used for the f0 in simultaneous fits to the resonances in inclusive π +π ^- and K+K^- mass spectra. Fragmentation functions are reported for the three states. Total inclusive rates are measured to be 0.141 +/- 0.007 +/- 0.011 f0, 0.155+/-0.011+/-0.018 f2 and 0.091+/-0.002+/-0.003 φ mesons per hadronic Z0 decay. The production properties of the f0, including those in three-jet events, are compared with those of the f2 and φ , and with the Lund string model of hadron production. All measurements are consistent with the hypothesis that the f0(980) is a conventional q q scalar meson.
European Physical Journal C
- Pub Date:
- High Energy Physics - Experiment
- 24 pages, LaTeX, uses a4p.sty and pennames.sty, 8 eps figures (and colour copies) included, submitted to Eur. Phys. J. C