Abstract
Using data obtained with the bubble chamber BEBC at CERN, the inclusive ρ0 (770) meson production in νp and $$\bar vp$$ charged current reactions is studied. The average ρ0 multiplicity is measured as a function of the event variablesE ν ,W 2,Q 2,x Bj , and the charged multiplicity. The differentialx F ,y *,z andp 2 distributions of the ρ0 are presented as well as the averagep 2 as a function ofW 2 andx F . The ρ0/π0 ratio and the fractions of the π± originating from ρ0 decays are given as functions ofx F . The results are compared to the predictions of fragmentation models. A particular version of the Lund model predicts ρ0 multiplicities which are generally too high, although it qualitatively reproduces many aspects of the data. The ρ0 multiplicities predicted by a semi-empirical model (Wells model) are in quantitative agreement with the measurements.
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