Probing the two Higgs doublet wedge region with charged Higgs boson decays to boosted jets

TL;DR

This paper investigates the potential to detect TeV-scale charged Higgs bosons in two Higgs doublet models at future colliders, focusing on boosted jet signatures and the challenging moderate tan beta wedge region.

Contribution

It demonstrates that a 100 TeV collider can probe the wedge region of parameter space inaccessible to the LHC, extending the search for charged Higgs bosons up to 6 TeV.

Findings

LHC cannot probe the moderate tan beta wedge for TeV-scale H±.

A 100 TeV collider can close the wedge below 2 TeV.

Searches at 100 TeV can reach charged Higgs masses up to 6 TeV.

Abstract

Two Higgs doublet extensions of the standard model, such as supersymmetry, predict the existence of charged Higgs bosons. We explore the reach for TeV-scale charged Higgs bosons through their associated production with top quarks, and their decay to boosted top jets and $\mu_x$ tagged boosted bottom jets, at a 14 TeV CERN Large Hadron Collider and at a 100 TeV Future Circular Collider. In particular, we show the moderate $\tan\beta$ "wedge" region of parameter space cannot be probed at the Large Hadron Collider for TeV-scale $H^\pm$ because the cross section is too small. However, a 100 TeV future proton collider can close the wedge region below 2 TeV, and search for $H^\pm$ up to 6 TeV.