Beam polarization effects on Z-boson pair production at electron-positron colliders: a full one-loop analysis

Abstract

We present high-precision predictions for Z boson-pair production via electron-positron collisions by taking into account a full set of one-loop order scattering amplitudes, i.e., electroweak (EW) corrections together with soft and hard QED radiation. We provide a detailed numerical evaluation, from full EW corrections to pure QED corrections, specifically focusing on the effect of initial beam polarization on production rate. The left-right asymmetry and angular distributions are also presented. The radiative corrections are largely affected by initial beam polarizations. We get an improvement as around three times with completely polarized beams of $e_L^{-}$ and $e_R^{+}$. We find that the radiative corrections can sizably modify the production rate, typically yielding a total relative correction up to a few tens of a percent. This imply that the full EW corrections are required for $e^{-}{e}^{+}\to ZZ$ to match with percent level accuracy.

16 pages (two columns), 17 figures, 3 tables

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• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Complete one-loop electroweak corrections to $ZZZ$ production at the ILC
• Neutralino pair production via photon-photon collisions at the ILC
• SANC: the process $\gamma \gamma \to ZZ$
• eeγproduction at photon-photon colliders at complete electroweak NLO accuracy

Cited by in corpus (3)

• Optimal estimation of Dimension-8 Neutral Triple Gauge Couplings at $e^{+}{e}^{-}$ Colliders
• Search for Neutral Triple Gauge Couplings with $ZZ$ Production at Future Electron Positron Colliders
• Search for the anomalous $ZZZ$ and $ZZ\gamma$ gauge couplings through the process $e^{+}{e}^{-}\to ZZ$ with unpolarized and polarized beams