15–18 Mar 2021
Zoom
Europe/Zurich timezone

Linear Collider Signals of Z bosons in GUT inspired Gauge-Higgs Unification

18 Mar 2021, 07:40
20m
Online Conference (Zoom)

Online Conference

Zoom

PD1: Theoretical Developments PD1: Theoretical Developments

Speaker

Naoki Yamatsu (Kyushu University)

Description

In gauge-Higgs unification (GHU), the 4D Higgs boson appears as a part of the fifth dimensional component of 5D gauge field. Recently, an SO(11) GUT inspired SO(5)×U(1)×SU(3) GHU model in has been proposed. In the GHU, Kaluza-Klein (KK) excited states of neutral vector bosons, photon, Z boson and ZR boson, appear as neutral massive vector bosons Zs. The Z bosons in the GHU couple to quarks and leptons with large parity violation, which leads to distinctive polarization dependence in, e.g., cross sections and forward-backward asymmetries in ee+μμ+,qq¯ processes.
In the talk, we discuss fermion pair production in ee+ linear collider experiments with polarized e and e+ beams in the GUT inspired GHU. Deviations from the SM are shown in the early stage of ILC 250 GeV experiments. The deviations can be tested for the KK mass scale up to about 15 TeV.
This talk is mainly based on Phys.Rev.D102(2020)015029.

Time Zone Asia/Pacific

Primary author

Naoki Yamatsu (Kyushu University)

Co-authors

Shuichiro Funatsu (Central China Normal University) Hisaki Hatanaka Yutaka Hosotani (Osaka University) Yuta Orikasa (Czech Technical University in Prague)

Presentation materials