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arXiv · 2006.02157

Fermion pair production at $e^- e^+$ linear collider experiments in GUT inspired gauge-Higgs unification

Shuichiro Funatsu·Hisaki Hatanaka·Yutaka Hosotani·Yuta Orikasa·Naoki Yamatsu
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Abstract

Fermion pair production at $e^-e^+$ linear collider experiments with polarized $e^-$ and $e^+$ beams is examined in the GUT inspired $SO(5)\times U(1)\times SU(3)$ gauge-Higgs unification. There arises large parity violation in the couplings of leptons and quarks to Kaluza-Klein (KK) excited neutral vector bosons $Z'$s, which leads to distinctive polarization dependence in cross sections, forward-backward asymmetries, left-right asymmetries, and left-right forward-backward asymmetries in various processes. Those effects are detectable even for the KK mass scale up to about 15 TeV at future $e^-e^+$ linear collider experiments with energies 250$\,$GeV to 1$\,$TeV.

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Shuichiro Funatsu, Hisaki Hatanaka, Yutaka Hosotani, Yuta Orikasa, Naoki Yamatsu. 2020-06-03. Fermion pair production at $e^- e^+$ linear collider experiments in GUT inspired gauge-Higgs unification. https://doi.org/10.1103/physrevd.102.015029

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