Trilepton + top signal from chargino-neutralino decays of MSSM charged Higgs bosons at the LHC

Abstract

We perform for the Large Hadron Collider (LHC) a detailed study of charged Higgs boson production via the top-bottom quark associated mode followed by decays into a chargino and a neutralino, with masses and couplings as given by the general Minimal Supersymmetric Standard Model (MSSM). We focus our attention on the region of parameter space where the charged Higgs is heavier than the top quark, with intermediate values of tan beta. In this region, the identification of charged Higgs bosons via decays into Standard Model (SM) particles has proven to be ineffective. Modelling the CMS detector, we find that a signature consisting of three hard leptons accompanied by a hadronically reconstructed top quark plus substantial missing transverse energy, which may result from charged Higgs decays into neutralinos and charginos, can be made viable over a large variety of initially overwhelming SM and MSSM backgrounds, provided MSSM input parameters are favourable: notably, a small mu parameter and light sleptons are important prerequisites. We quantify these statements by performing a fairly extensive scan of the parameter space, including realistic hadron-level simulations, and delineate some potential discovery regions.

version as appears in Eur.Phys.J. C. Typos corrected, 1 figure modified

References in corpus (2)

• A note on twist two operators in N=4 SYM and Wilson loops in Minkowski signature
• Implementation of supersymmetric processes in the HERWIG event generator

Cited by in corpus (17)

• Physics Interplay of the LHC and the ILC
• MSSM Higgs Boson Searches at the LHC: Benchmark Scenarios after the Discovery of a Higgs-like Particle
• Higgs Boson Searches at Hadron Colliders
• Constraining Dark Matter in the MSSM at the LHC
• Yukawa txtures and charged Higgs boson phenomenology in the type-III two-Higgs-doublet model
• Associated charged Higgs and W boson production in the MSSM at the CERN Large Hadron Collider
• Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs
• Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
• Exploring novel correlations in trilepton channels at the LHC for the minimal supersymmetric inverse seesaw model
• Charged Higgs boson in the $W^{\pm }$ Higgs channel at the Large Hadron Collider
• Charged Higgs boson phenomenology in Supersymmetric models with Higgs triplets
• The Higgs sector of supersymmetric theories and the implications for high-energy colliders
• Implications of Yukawa Textures in the decay $H^{+}\to W^{+}\gamma$ within the 2HDM-III
• Wedgebox analysis of four-lepton events from neutralino pair production at the LHC
• Transverse mass and invariant mass observables for measuring the mass of a semi-invisibly decaying heavy particle
• Discovery potential for a charged Higgs boson decaying in the chargino-neutralino channel of the ATLAS detector at the LHC
• Signal versus Background Interference in $H^{+}\to t\bar{b}$ Signals for MSSM Benchmark Scenarios