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تسجيل مستخدم جديدFour Fermion processes at LEP II
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V. Verzi
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In its second phase, LEP has given the unique opportunity to study four fermion processes never observed before. This papers deals with a preliminary study of $WW$, $We u$, $ZZ$ and $Zgamma^star$ production in $e^+e^-$ collisions. Measurement results on $WW$ cross section, $W$ branching fractions, $WWV$ ($V=Z/gamma$) anomalous couplings and $W$ average polarization in $WW$ events are presented. Moreover cross section measurements for $We u$, $ZZ$ and $Zgamma^star$ production and limits on $ZZZ$ and $ZZgamma$ anomalous couplings are reported. All the results are in good agreement with the Standard Model expectations.
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