Charged Higgs Decay to Bottom and Charm Quarks from $Z_3$-Flavored Two Higgs Doublet Models

TL;DR

This paper explores a $Z_3$-flavored two Higgs doublet model, showing enhanced flavor-changing decays of a charged Higgs to bottom and charm quarks, and suggests potential detection at future colliders.

Contribution

It introduces a $Z_3$ flavor symmetry in a two Higgs doublet model to explain charged Higgs decay patterns and collider signatures.

Findings

Enhanced $H^ o bc$ decay coupling due to $Z_3$ symmetry

Reproduction of ATLAS excess at 130 GeV charged Higgs mass

Potential for future detection at LHeC

Abstract

The phenomenology of a charged Higgs present in a model with two Higgs SU(2) doublets and a $Z_3$ flavor symmetry is analyzed. It is shown that it is possible to generate an enhancement of its flavor changing coupling to c and b quarks and also to reproduce the ATLAS excess associated to the process $H^\pm \to bc$ for a charge Higgs mass of $130$~GeV. Furthermore, by considering the possibility of a search at the future LHeC, the analysis suggests viability for its detection.