EPJ

2023 Impact factor 4.2
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 4, 19-28
DOI 10.1007/s100529800886

Production of f0(980), f2(1270) and $\phi(1020)$ in hadronic Z0 decay

The OPAL Collaboration
K.Ackerstaff8 - et al.

8 CERN, European Organisation for Particle Physics, CH-1211 Geneva 23, Switzerland

Received: 23 January 1998 / Published online: 24 April 1998

Abstract
Inclusive production of the f0(980), f2(1270) and $\phi(1020)$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 $\pi^+\pi^-$ and K+K- mass spectra. Fragmentation functions are reported for the three states. Total inclusive rates are measured to be $0.141 \pm 0.007 \pm 0.011$ f0, $0.155\pm0.011\pm0.018$ f2 and $0.091\pm0.002\pm0.003$ $\phi$ 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 $\phi$, and with the Lund string model of hadron production. All measurements are consistent with the hypothesis that the f0(980) is a conventional $q\overline{q}$ scalar meson.

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