Phenomenological Comparison of Models with Extended Higgs Sectors

Abstract

Beyond the Standard Model (SM) extensions usually include extended Higgs sectors. Models with singlet or doublet fields are the simplest ones that are compatible with the $\rho$ parameter constraint. The discovery of new non-SM Higgs bosons and the identification of the underlying model requires dedicated Higgs properties analyses. In this paper, we compare several Higgs sectors featuring 3 CP-even neutral Higgs bosons that are also motivated by their simplicity and their capability to solve some of the flaws of the SM. They are: the SM extended by a complex singlet field (CxSM), the singlet extension of the 2-Higgs-Doublet Model (N2HDM), and the Next-to-Minimal Supersymmetric SM extension (NMSSM). In addition, we analyse the CP-violating 2-Higgs-Doublet Model (C2HDM), which provides 3 neutral Higgs bosons with a pseudoscalar admixture. This allows us to compare the effects of singlet and pseudoscalar admixtures. Through dedicated scans of the allowed parameter space of the models, we analyse the phenomenologically viable scenarios from the view point of the SM-like Higgs boson and of the signal rates of the non-SM-like Higgs bosons to be found. In particular, we analyse the effect of singlet/pseudoscalar admixture, and the potential to differentiate these models in the near future. This is supported by a study of couplings sums of the Higgs bosons to massive gauge bosons and to fermions, where we identify features that allow us to distinguish the models, in particular when only part of the Higgs spectrum is discovered. Our results can be taken as guidelines for future LHC data analyses, by the ATLAS and CMS experiments, to identify specific benchmark points aimed at revealing the underlying model.

Matches journal version; figures for NMSSM changed; conclusions unchanged

References in corpus (30)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Results from a search for dark matter in the complete LUX exposure
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Updated NNLO QCD predictions for the weak radiative B-meson decays
• SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
• The oblique parameters in multi-Higgs-doublet models
• Weak Radiative Decays of the B Meson and Bounds on $M_{H^{\pm }}$ in the Two-Higgs-Doublet Model
• A precision constraint on multi-Higgs-doublet models
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Measuring the Higgs Sector
• The N2HDM under Theoretical and Experimental Scrutiny
• Aspects of CP violation in the HZZ coupling at the LHC
• Constraining the Two-Higgs-Doublet-Model parameter space
• Consistency of the Two Higgs Doublet Model and CP violation in top production at the LHC
• $h\to Z\gamma$ in the complex two Higgs doublet model
• Discovery Prospects for NMSSM Higgs Bosons at the High-Energy Large Hadron Collider
• Determining the CP parity of Higgs bosons at the LHC in their tau decay channels
• Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS detector
• Extending two-Higgs-doublet models by a singlet scalar field - the Case for Dark Matter
• Wrong sign and symmetric limits and non-decoupling in 2HDMs
• A simplified 2HDM with a scalar dark matter and the galactic center gamma-ray excess
• Determining the CP parity of Higgs bosons at the LHC in the $\tau$ to 1-prong decay channels
• Light Stop Decay in the MSSM with Minimal Flavour Violation
• Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
• Trilinear Higgs couplings in the two Higgs doublet model with CP violation
• Pseudoscalar Higgs Bosons at the LHC: Production and Decays into Electroweak Gauge Bosons Revisited
• Dark matter annihilation through a lepton-specific Higgs boson

Cited by in corpus (52)

• Update of the global electroweak fit and constraints on two-Higgs-doublet models
• HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era
• HDECAY: Twenty++ Years After
• Status of the Charged Higgs Boson in Two Higgs Doublet Models
• The CP-Violating 2HDM in Light of a Strong First Order Electroweak Phase Transition and Implications for Higgs Pair Production
• BSMPT - Beyond the Standard Model Phase Transitions -A Tool for the Electroweak Phase Transition in Extended Higgs Sectors
• Two-real-scalar-singlet extension of the SM: LHC phenomenology and benchmark scenarios
• Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The C2HDM revisited
• Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
• Electron EDM in the complex two-Higgs doublet model
• Vacuum Instabilities in the N2HDM
• Showcasing HH production: Benchmarks for the (HL-)LHC
• 2HDECAY - A program for the Calculation of Electroweak One-Loop Corrections to Higgs Decays in the Two-Higgs-Doublet Model Including State-of-the-Art QCD Corrections
• Two Higgs Doublets and a Complex Singlet: Disentangling the Decay Topologies and Associated Phenomenology
• TeV Scale Resonant Leptogenesis with $L_{\mu }-L_{\tau }$ Gauge Symmetry in the Light of Muon $(g-2)$
• Enhanced di-Higgs Production in the Complex Higgs Singlet Model
• Di-Higgs Peaks and Top Valleys: Interference Effects in Higgs Sector Extensions
• Gauge-independent Renormalization of the N2HDM
• Can we discover a light singlet-like NMSSM Higgs boson at the LHC?
• Triple Higgs Boson Production at the Large Hadron Collider with Two Real Singlet Scalars
• Impact of Electroweak Corrections on Neutral Higgs Boson Decays in Extended Higgs Sectors
• Extended Higgs sector of 2HDM with real singlet facing LHC data
• Decays of Higgs Bosons in the Standard Model and Beyond
• Models with Extended Higgs Sectors at Future $e^{+}{e}^{-}$ Colliders
• CP-violation, Asymmetries and Interferences in $t\bar{t}\varphi$
• Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Constraints on a 2HDM with a singlet scalar and implications in the search for heavy bosons at the LHC
• Two-Loop $\mathcal{O}({\alpha }_t^2)$ Corrections to the Neutral Higgs Boson Masses in the CP-Violating NMSSM
• Two-Real-Singlet-Model Benchmark Planes
• Impact of New Experimental Data on the C2HDM: the Strong Interdependence between LHC Higgs Data and the Electron EDM
• Light Higgs searches in $t\bar{t}\varphi$ production at the LHC
• Electroweak corrections to the fermionic decays of heavy Higgs states
• Scalar mass dependence of angular variables in $t\bar{t}\varphi$ production
• High scale boundary conditions with an additional complex singlet
• ewN2HDECAY - A program for the Calculation of Electroweak One-Loop Corrections to Higgs Decays in the Next-to-Minimal Two-Higgs-Doublet Model Including State-of-the-Art QCD Corrections
• Search for heavy pseudoscalar and scalar bosons decaying to a top quark pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Resonant Multi-Scalar Production in the Generic Complex Singlet Model in the Multi-TeV Region
• Search for Higgs boson pair production in association with a vector boson in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Phenomenology of an $E_6$ inspired extension of Standard Model: Higgs sector
• An effective scanning method of the NMSSM parameter space
• Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of $\tau$-leptons with the ATLAS detector
• Electroweak Corrections to Dark Matter Direct Detection in the Dark Singlet Phase of the N2HDM
• CP-violating effects on gravitational waves in a complex singlet extension of the Standard Model with degenerate scalars
• Interpreting the 650 GeV and 95 GeV Higgs anomalies in the next-to-two-Higgs-doublet model
• Curing tachyonic tree-level syndrome in NMSSM light-singlet scenarios
• Invisible dark matter decays of a non-Standard Model like CP-even scalar boson
• Heavy Higgs boson Searches at the LHC in the light of a Left-Right Symmetric Model
• Gravitational Wave Mountains: current-carrying domain walls
• RelExt: A New Dark Matter Tool for the Exploration of Dark Matter Models
• Reconstruction and identification of pairs of collimated $\tau$-leptons decaying hadronically using $\sqrt{s}=13$ TeV $pp$ collision data with the ATLAS detector
• Feasibility of the observation of a heavy scalar through the fully hadronic final state at the LHeC