Two-Higgs-Doublet Model and Quark-Lepton Unification

TL;DR

This paper explores a Two-Higgs-Doublet Model derived from quark-lepton unification, analyzing its phenomenology, decay correlations, and potential for detection at the LHC, while considering flavor constraints.

Contribution

It introduces a minimal quark-lepton unification model predicting specific Higgs decay correlations and discusses how to experimentally test these predictions at the LHC.

Findings

Predicted correlation between heavy Higgs decays into tau leptons and bottom quarks.

Method to probe the model using decay width relations.

Discussion of flavor constraints on the model.

Abstract

We study the Two-Higgs-Doublet Model predicted in the minimal theory for quark-lepton unification that can describe physics at the low scale. We discuss the relations among the different decay widths of the new Higgs bosons and study their phenomenology at the Large Hadron Collider. As a result of matter unification, this theory predicts a correlation between the decay widths of the heavy Higgs bosons into tau leptons and bottom quarks. We point out how to probe this theory using these relations and discuss the relevant flavor constraints.