Collider signatures of the Gauge-Higgs Dark Matter

TL;DR

This paper explores collider signatures of Higgs boson dark matter in a gauge-Higgs unification model, focusing on production with W or Z bosons at LHC and ILC, highlighting detection challenges and prospects.

Contribution

It introduces collider signature analysis for Higgs dark matter in a gauge-Higgs unification model, emphasizing detection strategies at future colliders.

Findings

Signal cross section is too low at LHC for detection.

Potential to identify Higgs dark matter at ILC with polarized beams.

Large missing energy signatures with W/Z bosons are key indicators.

Abstract

A recently proposed SO(5)xU(1) gauge-Higgs unification model in the Randall-Sundrum warped space contains a very interesting dark matter candidate, the Higgs boson. As a part of the fifth component of a five-dimensional gauge field, the four-dimensional neutral Higgs boson has odd H parity while all the other standard model particles have even parity to all orders in perturbation theory. Based on H-parity conserving WWHH and ZZHH vertices, we investigate the collider signatures of Higgs dark matter production associated with a SM W or Z gauge boson at the LHC and the ILC. The final state consists of a W or a Z boson with large missing energy. We found that the level of the signal cross section is quite hopeless at the LHC while we may be able to identify it at the ILC with polarized electron beams.