Charged di-boson production at the LHC in a 4-site model with a composite Higgs boson

Abstract

We investigate the scope of the LHC in probing the parameter space of a 4-site model supplemented by one composite Higgs state, assuming all past, current and future energy and luminosity stages of the CERN machine. We concentrate on the yield of charged di-boson production giving two opposite-charge different-flavour leptons and missing (transverse) energy, i.e., events induced via the subprocess $q\bar{q}\to e^{+}{\nu }_e{\mu }^{-}{\bar{\nu }}_{\mu }$ + $c.c.$, which enables the production in the intermediate step of all additional neutral and charged gauge bosons belonging to the spectrum of this model, some of which in resonant topologies. We find this channel accessible over the background at all LHC configurations after a dedicated cut-based analysis. We finally compare the yield of the di-boson mode to that of Drell-Yan processes and establish that they have complementary strengths, one covering regions of parameter space precluded to the others and vice versa.

36 pages, 13 figures, 13 tables

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• Future tests of Higgs compositeness: direct vs indirect
• Hadron Collider Searches for Diboson Resonances
• Leptonic final states from di-boson production at the LHC in the 4-Dimensional Composite Higgs Model
• The vector resonance triplet with the direct coupling to the third quark generation
• The Role of Vector Boson Fusion in the Production of Heavy Vector Triplets at the LHC and HL-LHC
• Discovery and Mass Spectroscopy via Mixed Di-Boson Production at the LHC in a 4-Site Model with a Composite Higgs Boson
• A case study about the mass exclusion limits for the BSM vector resonances with the direct couplings to the third quark generation
• Classification of simple heavy vector triplet models
• Spin-1 resonances
• Rescaling mechanism and effective symmetry from the ideal cancellation of the $S$ parameter in custodial models
• A Simplified Model of Heavy Vector Singlets for the LHC and Future Colliders
• Combination of searches for heavy vector boson resonances in proton-proton collisions at $\sqrt{s}$ = 13 TeV