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Polarization effects on W boson pair productions with the extra neutral gauge boson at the e^+ e^- Linear Collider

Dong-Won Jung·Kang Young Lee·H. S. Song·Chaehyun Yu
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Abstract

We perform the comprehensive analysis of the polarization effects on the e^+e^- -> W^+W^- process in the presence of the extra neutral gauge boson at the LC energies. Consideration of the polarizations of the produced W bosons and the beam polarizations provides substantial enhancements of the sensitivity to the Z-Z' mixing angles in various models and the asymmetry variables also give the strict constraints on the mixing angles. We find that the χ-model and the left-right model get the strict constraint from σ_{LL}^{unpol} while the ψ-model and the η-model from the beam polarization asymmetry.

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Dong-Won Jung, Kang Young Lee, H. S. Song, Chaehyun Yu. 1999-05-15. Polarization effects on W boson pair productions with the extra neutral gauge boson at the e^+ e^- Linear Collider. https://arxiv.org/abs/hep-ph/9905353

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