Zz Cross Section Measurements
نویسنده
چکیده
Results on the cross section measurement of Z boson pair–production at LEP 1,2 are presented. The more general case of neutral–current four–fermion production and the particular case of ZZ events enriched in b quarks are also discussed. All the results agree with the Standard Model predictions.
منابع مشابه
International Journal of Modern Physics A, ❢c World Scientific Publishing Company
In the Standard Model (SM), the process ee → ZZ occurs via the NC2 diagrams. No tree level ZZZ and ZZγ couplings are expected, however, physics beyond the SM could lead to effective couplings which could then contribute to the ZZ production cross-section. Deviations from the SM may arise, for example, in models with low scale quantum gravity in extra spatial dimensions (LSG), due to s-channel g...
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