D. Buskulic et al., INCLUSIVE PRODUCTION OF NEUTRAL VECTOR-MESONS IN HADRONIC Z-DECAYS, Zeitschrift fur Physik. C, Particles and fields, 69(3), 1996, pp. 379-392
Data on the inclusive production of the neutral vector mesons rho(0)(7
70), omega(782), K(0)(892), and phi (1020) in hadronic Z decays recor
ded with the ALEPH detector at LEP are presented and compared to Monte
Carlo model predictions. Bose-Einstein effects are found to be import
ant in extracting a reliable value for the p(0) production rate. An av
erage p(0) multiplicity of 1.45 +/- 0.21 per event is obtained. The om
ega is detected via its three pion decay mode omega --> pi(+)pi(-)pi(0
) and has a total rate of 1.07 +/- 0.14 per event. The multiplicity of
the K(0) is 0.83 +/- 0.09, whilst that of the phi is 0.122 +/- 0.009
, both measured using their charged decay modes. The measurements prov
ide information on the relative production rates of vector and pseudos
calar mesons, as well as on the relative probabilities for the product
ion of hadrons containing u, d, and s quarks.