Searching for Charged Higgs Bosons in the $B-L$ Supersymmetric Standard Model at the High Luminosity Large Hadron Collider

TL;DR

This paper evaluates the potential of the HL-LHC to discover charged Higgs bosons predicted by the $B-L$ Supersymmetric Standard Model, focusing on pair production from $Z'$ decays and high transverse momentum signatures.

Contribution

It demonstrates the feasibility of detecting charged Higgs bosons in the BLSSM at the HL-LHC through specific decay channels and high-momentum kinematic regions, extending previous search strategies.

Findings

Charged Higgs bosons can be detected for masses from $M_W$ to above $m_t$.

Detection is possible for $Z'$ masses between 2.5 and 3.5 TeV.

High transverse momentum of $Z'$ decays reduces Standard Model background.

Abstract

Upon assuming the $B-L$ Supersymmetric Standard Model (BLSSM) as theoretical framework accommodating a multi-Higgs sector, we assess the scope of the High Luminosity Large Hadron Collider (HL-LHC) in accessing charged Higgs bosons ($H^\pm$) produced in pairs from $Z'$ decays. We show that, by pursuing both di-jet and tau-neutrino decays, several signals can be established for $H^\pm$ masses ranging from about $M_{W}$ to above $m_t$ and $Z'$ masses between 2.5 TeV and 3.5 TeV. The discovery can be attained, even in a background free environment in some cases, owing to the fact that the very massive resonating $Z'$ ejects the charged Higgs bosons at very high transverse momentum, a kinematic region where any SM noise is hugely depleted.