Abstract.
Inclusive production of the \({\rm f_0}(980)\), \({\rm f}_2(1270)\) and \(\phi(1020)\) resonances has been studied in a sample of 4.3 million hadronic \({\rm Z}^0\) decays from the OPAL experiment at LEP. A coupled channel analysis has been used for the \({\rm f}_0\) in simultaneous fits to the resonances in inclusive \(\pi^+\pi^-\) and \({\rm K^+K^-}\) mass spectra. Fragmentation functions are reported for the three states. Total inclusive rates are measured to be \(0.141 \pm 0.007 \pm 0.011\) \({\rm f}_0\), \(0.155\pm0.011\pm0.018\) \({\rm f}_2\) and \(0.091\pm0.002\pm0.003\) \(\phi\) mesons per hadronic \({\rm Z}^0\) decay. The production properties of the \({\rm f}_0\), including those in three-jet events, are compared with those of the \({\rm f}_2\) and \(\phi\), and with the Lund string model of hadron production. All measurements are consistent with the hypothesis that the \({\rm f_0}(980)\) is a conventional \({\rm q\bar q}\) scalar meson.
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Received: 23 January 1998 / Published online: 24 April 1998
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The OPAL Collaboration., Ackerstaff et al., K. Production of \({\rm f_0}(980)\), \({\rm f}_2(1270)\) and \(\phi(1020)\) in hadronic \({\rm Z}^0\) decay. Eur. Phys. J. C 4, 19–28 (1998). https://doi.org/10.1007/s100529800886
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DOI: https://doi.org/10.1007/s100529800886