====== TTP93-34 Hadron Radiation in Leptonic $Z$ Decays ======
 
 
<hidden TTP93-34  Hadron Radiation in Leptonic $Z$ Decays > The rate for the final state radiation of hadrons in leptonic
 $Z$ decays is evaluated, using as input experimental data for
 $\sigma (e^+e^-\to hadrons)$ 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
 $\Gamma_{l\bar l had}/\Gamma_{l\bar l}=6.3\times 10^{-4}$ 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.
 </hidden>
|**A.H. Hoang, M. Je\.zabek, J.H. K\"uhn and T. Teubner**  | 
|** Phys. Lett. B325 495--499 1994  **  |
| {{preprints:1993:ttp93-34.pdf|PDF}} {{preprints:1993:ttp93-34.ps|PostScript}}   |
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