Colour Octet Extension of 2HDM

TL;DR

This paper explores a theoretical extension of the Two-Higgs-Doublet Model (2HDM) involving a colour-octet scalar, analyzing constraints and potential signals at the LHC.

Contribution

It introduces a colour-octet extension to 2HDM, detailing theoretical constraints and phenomenological implications for collider experiments.

Findings

Derived parameter constraints for the extended model

Identified potential LHC signatures of the colour-octet scalar

Compared the extension's predictions with existing experimental data

Abstract

In this talk we consider some aspects of the Manohar-Wise extension of the SM with a colour-octet electroweak-doublet scalar applied to 2HDM. We present theoretical constraints on the parameters of this extension to both the SM and the 2HDM and discuss related phenomenology at LHC.