Yukawa txtures and charged Higgs boson phenomenology in the type-III two-Higgs-doublet model

TL;DR

This paper explores how a four-zero Yukawa texture influences the properties, production, and decay of charged Higgs bosons in the Type III 2-Higgs Doublet Model, highlighting potential collider signatures.

Contribution

It provides a detailed analysis of charged Higgs couplings, decay patterns, and production mechanisms within the Type III 2HDM with Yukawa textures, offering novel insights for collider phenomenology.

Findings

Modified charged Higgs couplings affect decay patterns.

Enhanced production channels at the LHC are identified.

Distinct signatures can differentiate this model from other 2HDMs.

Abstract

We discuss the implications of assuming a four-zero Yukawa texture for the properties of the charged Higgs boson within the context of the general 2-Higgs Doublet Model of Type III. We begin by presenting a detailed analysis of the charged Higgs boson couplings with heavy quarks and the resulting pattern for its decays. The production of charged Higgs bosons is also sensitive to the modifications of its couplings, so that we also evaluate the resulting effects on the top decay $t \to b H^{+}$ as well as on `direct' $c\bar{b}\to H^++c. c.$ and `indirect' $q\bar q,gg\to \bar t b H^++c. c.$ production. Significant scope exists at the Large Hadron Collider for several $H^\pm$ production and decay channels combined to enable one to distinguish between such a model and alternative 2-Higgs doublet scenarios.