Hadron Radiation in Leptonic Z Decays
Hoang, A. H. · Jeżabek, M. · Kühn, J. H. · Teubner, T.
Original · EN
The rate for the final state radiation of hadrons in leptonic Z decays is evaluated, using as input experimental data for σ(e+e-→ hadrons) in the low energy region. Configurations with a lepton pair of large and a hadronic state of low invariant mass are dominant. A relative rate Γl l had/Γl l=6.3× 10⁻⁴ is calculated. This result is about twice the prediction based on a parton model calculation with a quark mass of 300 MeV. The rate for secondary production of heavy quarks is calculated in the same formalism.
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