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{\bf Abstract Registration Number 527} \\
{\bf Parallel sessions: 3} \\
{\bf Plenary sessions: 5}
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\abstractheader{\bf Multi-Jet Event Rates in Deep-Inelastic Scattering and \\
Determination of the Strong Coupling Constant\\
H1 Collaboration, DESY}

\abstractbody{
Jet event rates in deep inelastic {\it ep}$\,$ scattering at HERA are 
investigated applying the modified JADE jet algorithm. 
The analysis uses data taken with the H1 detector in 1994 and 1995. 
The data are corrected for detector and hadronization effects and then
compared with pertubative QCD predictions using next-to-leading order 
calculations. The strong coupling constant $\alpha_{s}(M_Z^{2})$ 
is determined evaluating the jet event rates. 
Values of $\alpha_{s}(Q^{2})$ are extracted in four different bins of 
the negative squared momentum transfer~$Q^{2}$ 
in the range from 40~GeV$^2\,$ to 4000~GeV$^2\,$. 
A combined fit of the renormalization group equation 
to these several $\alpha_{s}(Q^{2})$ values 
results in $\alpha_{s}(M_Z^{2}) = 0.117 \pm 0.003 \,(stat) \, 
                              ^{+\,0.009}_{-\,0.013} \,(sys) \,
                              + 0.006 \,(recombination\; scheme)$.
}

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