Radiative corrections to ZZ{r_arrow}ZZ in the electroweak standard model
- Paul Scherrer Institut, Wuerenlingen und Villigen, CH-5232 Villigen PSI (Switzerland)
- Theoretische Physik, Universitaet Bielefeld, Postfach 100131, D-33501 Bielefeld (Germany)
- Institut fuer Theoretische Physik, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg (Germany)
The cross section for ZZ{r_arrow}ZZ with arbitrarily polarized Z bosons is calculated within the electroweak standard model including the complete O({alpha}) corrections. We show the numerical importance of the radiative corrections and elaborate its characteristic features. The treatment of the Higgs-boson resonance is discussed in different schemes including the S-matrix-motivated pole scheme and the background-field method. The numerical accuracy of the equivalence theorem is investigated by comparing the cross sections for purely longitudinal Z bosons obtained from the equivalence theorem and from the complete calculation. In this context the full O({alpha}) corrections are also confronted with the enhanced corrections of O({alpha}M{sub H}{sup 2}/s{sub W}{sup 2}M{sub W}{sup 2}), which were frequently used in the literature. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 531951
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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