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arXiv · hep-ph/9705430

Gauge Invariant YFS Exponentiation of (Un)stable $Z$-Pair Production At and Beyond LEP2 Energies

S. Jadach·W. Placzek·B. F. L. Ward
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Abstract

We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of $e^+e^- \to Z Z \to f_1\bar f_1 + \bar f_2 f_2$ at and beyond LEP2 energies, where the left-handed part of $f_i$ is a component of an $SU_{2L}$ doublet, $i=1,2$. The calculation is performed for both SM couplings and for anomalous $ZZV$ triple gauge boson couplings in the conventions of Hagiwara et al.. Our formulas, which are gauge invariant, are illustrated in a proto-typical YFS Monte Carlo event generator YFSZZ.

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S. Jadach, W. Placzek, B. F. L. Ward. 1997-05-27. Gauge Invariant YFS Exponentiation of (Un)stable $Z$-Pair Production At and Beyond LEP2 Energies. https://doi.org/10.1103/physrevd.56.6939

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