The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit

Abstract

A CP-even neutral Higgs boson with Standard-Model-like couplings may be the lightest scalar of a two-Higgs-doublet model. We study the decoupling limit of the most general CP-conserving two-Higgs-doublet model, where the mass of the lightest Higgs scalar is significantly smaller than the masses of the other Higgs bosons of the model. In this case, the properties of the lightest Higgs boson are nearly indistinguishable from those of the Standard Model Higgs boson. The first non-trivial corrections to Higgs couplings in the approach to the decoupling limit are also evaluated. The importance of detecting such deviations in precision Higgs measurements at future colliders is emphasized. We also clarify the case in which a neutral Higgs boson can possess Standard-Model-like couplings in a regime where the decoupling limit does not apply. The two-Higgs-doublet sector of the minimal supersymmetric model illustrates many of the above features.

54 pages, 2 tables, revtex4 format, some new material added (including elegant forms for the three-Higgs and four-Higgs couplings) and typographical errors fixed

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• Current status of MSSM Higgs sector with LHC 13 TeV data
• Unstable Gravitino Dark Matter - Prospects for Indirect and Direct Detection
• Two-Higgs-Doublet type-II and -III models and $t\to ch$ at the LHC
• Higgs diphoton rate enhancement from supersymmetric physics beyond the MSSM
• Heavy MSSM Higgs production at the LHC and decays to WW,ZZ at higher orders
• $h\to \mu \tau$ and muon g-2 in the alignment limit of two-Higgs-doublet model
• Heavy Higgs as a Portal to the Supersymmetric Electroweak Sector
• Renormalization group effects in astrophobic axion models
• Strategies to link tiny neutrino masses with huge missing mass of the Universe
• Alignment without Decoupling: the Portal to Light Dark Matter in the MSSM
• Resummation and renormalons in a general Quantum Field Theory
• Vector-Boson Production of Light Higgs Pairs in 2-Higgs Doublet Models
• Implication of Higgs at 125 GeV within Stochastic Superspace Framework
• Exclusive production of heavy charged Higgs boson pairs in the $pp\to pp{H}^{+}{H}^{-}$ reaction at the LHC and a future circular collider
• The Higgs Boson is found: What is next?
• Charged Higgs Boson Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
• Dark Z at the International Linear Collider
• Searching for new physics effects in future $W$ mass and ${\sin }^2{\theta }_W(Q^2)$ determinations
• Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus $b$-jets final states in $pp$ collisions at 13 TeV with the ATLAS detector
• Vacuum stability in the Standard Model with vector-like fermions
• Resonant top pair searches at the LHC: a window to electroweak phase transition
• Probing double-aligned two Higgs doublet models at LHC
• Same sign trilepton as signature of charged Higgs in two Higgs doublet model
• Nondecoupling in Multi-Higgs doublet models
• Digging for Top Squarks from Higgs data: from signal strengths to differential distributions
• Natural Standard Model Alignment in the Two Higgs Doublet Model
• A Supersymmetric Higgs Sector with Chiral D-terms
• Radiative Corrections to $H^0\to WW/ZZ$ in the MSSM
• The Higgs intense--coupling regime in constrained SUSY models and its astrophysical implications
• Diffractive SUSY particle production at the LHC
• Comparative Studies of 2HDMs under the Higgs Boson Precision Measurements
• New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies
• Minimal inverse-seesaw mechanism with Abelian flavour symmetries
• Neutrino Masses in Split Supersymmetry
• Electroweak vacuum stability and finite quadratic radiative corrections
• Precise predictions for charged Higgs boson pair production in photon-photon collisions
• Analysis of $W^{\pm }+4\gamma$ in the 2HDM Type-I at the LHC
• Symmetry and decoupling in multi Higgs models
• Impact of a four-zero Yukawa texture on $h\to \gamma \gamma$ and $\gamma Z$ in the framework of the Two Higgs Doublet Model Type III
• Improved Naturalness and the Two Higgs Doublet Model
• Right-handed Neutrino Dark Matter, Neutrino Masses, and non-Standard Cosmology in a 2HDM
• Higher dimensional operators in 2HDM
• Multi-Higgs Production Probes Higgs Flavor
• Generalized 2HDM with wrong-sign lepton Yukawa coupling, in light of $g_{\mu }-2$ and lepton flavor violation at the future LHC
• Charged Lepton EDM with Extra Yukawa Couplings
• Hadron Collider Searches for Diboson Resonances
• Top quark polarization as a probe of charged Higgs bosons
• P-even, CP-violating Signals in Scalar-Mediated Processes
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• Phenomenology of the Basis-Independent CP-Violating Two-Higgs Doublet Model [Dissertation]
• Relaxed constraints on the heavy scalar masses in 2HDM
• Higgs Boson Contributions to the Electron Electric Dipole Moment
• Constraining the Higgs-Dilaton with LHC and Dark Matter Searches
• Higgs phenomenology in the Stealth Doublet Model
• Diboson anomaly: heavy Higgs resonance and QCD vector-like exotics
• MSSM-inspired multifield inflation
• CP-odd component of the lightest neutral Higgs boson in the MSSM
• Custodial Symmetry Breaking and Higgs Signatures at the LHC
• Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit
• Disentangling CP phases in nearly degenerate resonances: neutralino production via Higgs at a muon collider
• Low energy phenomena of the lepton sector in an $A_4$ symmetry model with heavy inverse seesaw neutrinos
• Charged Higgs boson production via $cb-$fusion at the Large Hadron Collider
• Search for a light charged Higgs boson in $t\to H^{\pm }b$ decays, with $H^{\pm }\to cs$, in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Enhanced Charged Higgs Production through W-Higgs Fusion in W-b Scattering
• Flavour-changing neutral scalar interactions of the top quark
• Phenomenology of the new light Higgs bosons in Gildener-Weinberg model
• Phenomenology of SU(5) low-energy realizations: the diphoton excess and Higgs flavor violation
• Maximising CP Violation in Naturally Aligned Two-Higgs Doublet Models
• Search for a heavy charged Higgs boson decaying into a $W$ boson and a Higgs boson in final states with leptons and $b$-jets in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Partially Natural Two Higgs Doublet Models
• On the viability of a light scalar spectrum for 3-3-1 models
• Electroweak corrections to the fermionic decays of heavy Higgs states
• Sensitivity of the decay $h\to Z{Z}^{\ast }\to Zl+l-$ to the Higgs self coupling through radiative corrections
• Cascade decays of Heavy Higgs bosons through vectorlike quarks
• Higgs Quark Flavor Violation: Simplified Models and Status of General Two-Higgs-Doublet Model
• $\mathcal{C}\mathcal{P}$ structure of the top-quark Yukawa interaction: NLO QCD corrections and off-shell effects
• Next-to-leading order corrections to decays of the heavier CP-even Higgs boson in the two Higgs doublet model
• Anomaly-free axion dark matter in three Higgs doublet model and its phenomenological implications
• Effective Theory of Higgs Sector Vacuum States
• The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding
• Effects of heavy neutrinos on vacuum stability in two-Higgs-doublet model with GUT scale supersymmetry
• Charming Top Decays with Flavor Changing Neutral Higgs Boson and WW at Hadron Colliders
• Private Higgs at the LHC
• The Muon Magnetic Moment and Physics Beyond the Standard Model
• Search for lepton-flavour-violating decays of Higgs-like bosons
• Higgs properties in a broken Inert Doublet Model
• Classes of complete dark photon models constrained by Z-Physics
• Detecting a Higgs Pseudoscalar with a Z Boson Produced in Bottom Quark Fusion
• Predictions for Muon Electric and Magnetic Dipole Moments from $h\to {\mu }^{+}{\mu }^{-}$ in Two-Higgs-Doublet Models with New Leptons
• Baryogenesis from spontaneous CP violation in the early Universe
• Neutrino-axion-dilaton interconnection
• Electroweak renormalization based on gauge-invariant vacuum expectation values of non-linear Higgs representations: 2. extended Higgs sectors
• Leptonic cascade decays of a heavy Higgs boson through vectorlike leptons at the LHC
• A More Natural Composite Higgs Model
• Hole or grain? A Section Pursuit Index for Finding Hidden Structure in Multiple Dimensions
• Gigantic diphoton rate of heavy Higgs bosons in the aligned two Higgs doublet models with small $\tan \beta$
• Pseudo-Dirac Higgsino dark matter in GUT scale supersymmetry
• Non-Invertible Peccei-Quinn Symmetry, Natural 2HDM Alignment, and the Visible Axion
• Heavy Higgs Resonances for the Neutralino Relic Density in the Higgs Decoupling Limit of the CP--noninvariant Minimal Supersymmetric Standard Model
• Relevance of one-loop SMEFT matching in the 2HDM
• Search for Higgs boson pair production in association with a vector boson in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Search for dark matter produced in association with a single top quark and an energetic $W$ boson in $\sqrt{s}=$ 13 TeV $pp$ collisions with the ATLAS detector
• Running effects on QCD axion phenomenology
• Bounding the B_s -> gamma gamma decay from Higgs mediated FCNC transitions
• Charged Higgs Pair Production in a General Two Higgs Doublet Model at $e^{+}{e}^{-}$ and ${\mu }^{+}{\mu }^{-}$ Linear Colliders
• Light charged Higgs boson production at the Large Hadron electron Collider
• Vacuum Stability of Asymptotically Safe Two Higgs Doublet Models
• Tree-level Quartic for a Holographic Composite Higgs
• Phenomenology of Higgs bosons in inverse seesaw model with Type-X two Higgs doublet at the LHC
• Radiative Light Dark Matter
• Precision unification and Higgsino dark matter in GUT scale supersymmetry
• FN-2HDM: Two Higgs Doublet Models with Froggatt-Nielsen Symmetry
• Triple Higgs coupling effect on $h^0\to b\bar{b}$ and $h^0\to {\tau }^{+}{\tau }^{-}$ in the 2HDM
• Flavor changing top decays to charm and Higgs with $\tau \tau$ at the LHC
• Higgs alignment and the top quark
• Exceptional regions of the 2HDM parameter space
• Inflation, electroweak phase transition, and Higgs searches at the LHC in the two-Higgs-doublet model
• Restricting the parameter space of Type-II Two Higgs Doublet Models with CP violation
• Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models
• Towards TeV-Scale Supersymmetric Electroweak Baryogenesis
• Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM
• Hints of a new leptophilic Higgs sector?
• Interpretations of the ATLAS measurements of Higgs boson production and decay rates and differential cross-sections in $pp$ collisions at $\sqrt{s}=13$ TeV
• The long-lived stau as a thermal relic
• Relating the Cabibbo angle to $\tan \beta$ in a two Higgs-doublet model
• A Mechanism for the Top-Bottom Mass Hierarchy
• Higgs and Z boson associated production via gluon fusion in the SM and the 2HDM
• The Hunt for the Rest of the Higgs Bosons
• New mechanism for the top-bottom mass hierarchy
• Electroweak production of multiple (pseudo)scalars in the 2HDM
• Benchmark Suggestions for Resonant Double Higgs Production at the LHC for Extended Higgs Sectors
• The γγ\to ϕ_iϕ_j processes in the type-III two-Higgs-doublet model
• Interpreting the 95 GeV resonance in the Two Higgs Doublet Model: Implications for the Electroweak Phase Transition
• The Gildener-Weinberg two-Higgs doublet model at two loops
• Charged Higgs Bosons in Naturally Aligned Two Higgs Doublet Models at the LHC
• Seeking the CP-odd Higgs via $h\to {\eta }_{c,b}{\ell }^{+}{\ell }^{-}$
• Signal to background interference in $pp\to t{H}^{-}\to t{W}^{-}b\bar{b}$ at the LHC Run-II
• Confronting the fourth generation two Higgs doublet model with the phenomenology of heavy Higgs bosons
• Dynamical Higgs Field Alignment in the NMSSM
• Triple gauge vertices at one-loop level in THDM
• Democratic three Higgs-doublet models: the custodial limit and wrong-sign Yukawa
• Off-diagonal terms in Yukawa textures of the Type-III 2-Higgs doublet model and light charged Higgs boson phenomenology
• Quantum corrections to the MSSM h^0 b b-bar vertex: Decoupling limit
• Constraints on the Doublet Left-Right Symmetric Model from Higgs data
• Light scalar beyond the Higgs mixing limit
• Alignment Limit in 2HDM: Robustness put to test
• Supersymmetry and the collider Dark Matter picture
• Extended Higgs sectors, effective field theory and Higgs phenomenology
• Charged Higgs decay to $W^{\pm }H$ at a high energy lepton collider
• Search for new Higgs bosons via same-sign top quark pair production in association with a jet in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a $Z$ boson in the ${\ell }^{+}{\ell }^{-}t\bar{t}$ and $\nu \bar{\nu }b\bar{b}$ final states using 140 fb${}^{-1}$ of data collected with the ATLAS detector
• Confronting Higgs couplings from D-term extensions and Natural SUSY at the LHC and ILC
• Can measurements of 2HDM parameters provide hints for high scale supersymmetry?
• Yukawa Alignment Revisited in the Higgs Basis
• Explaining Solar Neutrinos with Heavy Higgs Masses in Partial Split Supersymmetry
• Probing extra Yukawa couplings by precision measurements of Higgs properties
• Prospect and implications of $cg\to b{H}^{+}\to bA{W}^{+}$ production at the LHC
• Softly broken symmetries in the 2HDM -- an invariant formulation
• A Three Doublet Lepton-Specific Model
• Semi-dark Higgs decays: sweeping the Higgs neutrino floor
• Probe of new light Higgs bosons from bottomonium chi_{b0} decay
• Combination and summary of ATLAS dark matter searches interpreted in a 2HDM with a pseudo-scalar mediator using 139 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data
• Two-Higgs Doublet Model Effective Field Theory
• One-Loop Charge-Breaking Minima in the Two-Higgs Doublet Model
• Unveiling the Secrets of New Physics Through Top Quark Tagging
• Discovery prospects of a light Higgs boson at the LHC in type-I 2HDM
• Benchmarking a fading window: electroweak baryogenesis in the C2HDM, LHC constraints after Run 2 and prospects for LISA
• Seesaw neutrinos with one right-handed singlet field and a second Higgs doublet
• One-loop considerations for coexisting vacua in the CP conserving 2HDM
• Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
• Low energy behaviour of standard model extensions
• Lepton Flavor Violating tau --> 3mu Decay in Type-III Two Higgs Doublet Model
• e+e- --> nu nu-bar A in the two-Higgs-doublet model
• Review of Physics Results from the Tevatron: Higgs Boson Physics
• FCNC decays of the Higgs bosons in the BGL model
• Flavor from the Electroweak Scale
• Measuring the triple Higgs self-couplings in two Higgs doublet model
• Zee model with quasidegenerate neutrino masses and where to find it
• Prospects of Searches for Gauge Mediated Supersymmetry with h^0 -> χ_1^0 χ_1^0 production in the Time-Delayed Photon + MET Final State at the Tevatron
• Relations between $b\to c\tau \nu$ Decay Modes in Scalar Models
• Probing Exotic Triple Higgs Couplings at the LHC
• Is it $SU(2{)}_{\mathrm{L}}$ or just $U(1{)}_{\mathrm{Y}}$? $750$ GeV di-photon probes of the electroweak nature of new states
• Radiative corrections to $h^0\to W{W}^{\ast }/Z{Z}^{\ast }\to 4$\,leptons in the MSSM
• Electroweak corrections in the 2HDM for neutral scalar Higgs-boson production through gluon fusion
• Multilepton Signatures from Dark Matter at the LHC
• Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
• Higgs boson interference in mu^+ mu^- ->chargino_i chargino_j with longitudinally polarized beams
• Phenomenology of General Gauge Mediation in light of a 125 GeV Higgs
• Extended Higgs Sectors
• Fitting the Two-Higgs-Doublet model of type II
• Scenarios with low mass Higgs bosons in the heavy supersymmetry
• Probing the two Higgs doublet wedge region with charged Higgs boson decays to boosted jets
• Dark Matter Searches with Top Quarks
• Quantum interference effects in Higgs boson pair-production beyond the Standard Model
• Probing Type-I 2HDM light Higgs in the top-pair-associated diphoton channel
• Discriminating between SUSY and Non-SUSY Higgs Sectors through the Ratio $H\to b\bar{b}/H\to {\tau }^{+}{\tau }^{-}$ with a 125 GeV Higgs boson
• Double Higgs boson production as an exclusive probe for a sequential fourth generation with wrong-sign Yukawa couplings
• Six Higgs Doublets Model for Dark Matter
• Light states in real multi-Higgs models with spontaneous CP violation
• Kinematic corrections and reconstruction methods for neutral Higgs boson decay to $b\bar{b}$ in 2HDM type-I at future lepton colliders
• Almost Inert Higgs Bosons at the LHC
• Three Lectures of Flavor and CP violation within and Beyond the Standard Model
• Parameter dependence and analysis of the 2HDM neutral Higgs boson pair production and decay at future lepton colliders
• Physics at a Higgs Factory
• Predicting Alignment in a Two Higgs Doublet Model
• RG-stable parameter relations of a scalar field theory in absence of a symmetry
• QCD Corrections to $e^{+}{e}^{-}\to H^{\pm }{W}^{\mp }$ in Type-I THDM at Electron Positron Colliders
• Mu to e gamma in the 2 Higgs Doublet Model: an exercise in EFT
• Loop induced $h\to \gamma \gamma ,Z\gamma ,gg$ decays in 3-Higgs doublet models
• Heavy Higgs decay to $t\bar{t}Z$ and constraints on a $750$ GeV pseudoscalar
• Possible non-decoupling effects of heavy Higgs bosons in e+ e- -> W+ W- within THDM
• Neutrinos Meet Supersymmetry: Quantum Aspects of of Neutrinophysics in Supersymmetric Theories
• Observability of Charged Higgs through Triple or Double Higgs Production in a General Two Higgs Doublet Model at an e+e- Linear Collider
• $B\to K+\text{axion-like particles}$: effective versus UV-complete models and enhanced two-loop contributions
• Probing flavor parameters in the scalar sector and new bounds for the fermion sector
• Enhancement of Charged Higgs Production in Association With W at Muon Colliders in General Two Higgs Doublet Models
• Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
• Natural 2HDMs without FCNCs
• Interpreting the 650 GeV and 95 GeV Higgs anomalies in the next-to-two-Higgs-doublet model
• Profile of Two-Higgs-Doublet-Model Parameter Space
• Raising the SUSY-breaking scale in a Goldstone-Higgs model
• H1jet, a fast program to compute transverse momentum distributions
• Alignment of Yukawa couplings in two Higgs doublet models
• The 750 GeV diphoton excess and SUSY
• Identifying a new particle with jet substructures
• Fine-Tuning in the 2HDM
• On Extra Neutral and Charged Higgs bosons at the LHC
• Mapping $pp\to A\to ZH\to l^{+}{l}^{-}b\bar{b}$ and $pp\to H\to ZA\to l^{+}{l}^{-}b\bar{b}$ Current and Future Searches onto 2HDM Parameter Spaces
• An Unusual Two Higgs Doublet Model from Warped Space
• Present status and future prospects for a Higgs boson discovery at the Tevatron and LHC
• A framework for precision 2HDM studies at the ILC and CLIC
• Observability of 2HDM charged Higgs boson in a misaligned scenario
• Investigating Boson Sector in an Extended Standard Model with $U(1{)}_D$ Symmetry
• Pseudoscalar MSSM Higgs Production at NLO SUSY--QCD
• Does the LHC exclude SUSY Particles at the ILC?
• Confronting the broken phase N2HDM with Higgs Data
• Electroweak Precision Constraints on Dark Photon Models with Generalized Mixing
• Current status of Two-Higgs-Doublet models with a softly broken ${\mathbb{Z}}_2$ symmetry
• Neutrino masses, matter-antimatter asymmetry, dark matter, and supermassive black hole formation explained with Majorons
• Low scale leptogenesis and $T{M}_1$ mixing in neutrinophillic two Higgs doublet model($\nu$2HDM) with S4 flavor symmetry
• 2-loop RG evolution of CP-violating 2HDM
• Search for an exotic decay of the 125 GeV Higgs boson to a pair of light pseudoscalars in the final state of two muons and two c-quarks in proton-proton collisions at $\sqrt{s}=13\text{TeV}$ with CMS Open Data
• Enhancing $B_s\to e^{+}{e}^{-}$ to an Observable Level in the Two-Higgs-Doublet Model
• Searching for Dark Matter with $t\overline{t}$ Resonance
• The extra scalar degrees of freedom from the two Higgs doublet model for dark energy
• Heavy Higgs Bosons at the LHC Upgrade
• Analysis of trilinear Higgs self coupling in Two Higgs Doublet model at lepton collider
• Enhanced Four-Body Decays of Charged Higgs Bosons into Off-Shell Pseudoscalar Higgs and $W^{\pm }$ Boson Pairs in a Lepton-Specific 2-Higgs Doublet Model
• Investigating a strong first-order electroweak phase transition in the RxSM at future linear $e^{+}{e}^{-}$ colliders and LISA
• Constraints on Loryons in a Two Higgs Doublet Model
• New physics effects on the $W$-boson mass from a doublet extension of the SM Higgs sector
• Dynamical Mass Generation in Wick Cutkosky Model
• Investigation of Charged Higgs Boson in the Bottom and Top Quark Decay Channel at the FCC-hh
• Spontaneous CP Violation and Flavor Changing Neutral Currents in Minimal SO(10)
• Constraints from Heavy Higgs boson masses in the two Higgs doublet model
• Prospects for detecting the rare heavy Higgs decay $H\to h\gamma \gamma$ through the $H\to b\bar{b}\gamma \gamma$ channel at the LHC
• Vacuum Stability Conditions for New $SU(2)$ Multiplets
• Signatures of the Type-I 2HDM at the LHC
• Scalar and gauge sectors in the 3-Higgs Doublet Model under the S3-symmetry
• Studies of Wick Cutkosky model in light of its classical ground state using Dyson Schwinger equations
• Search for Higgs boson decays into a $Z$ boson and a light hadronically decaying resonance in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector
• Charged Higgs-boson pair production in association with the $Z^0$ boson at electron-positron colliders
• Type-II two-Higgs-doublet model in noncommutative geometry
• Higgs decay mediated by top-quark with flavor-changing neutral scalar interactions
• Two Higgs Doublet Model with Scalar Mediation via Yukawa Interactions
• Additional Higgs bosons: Supersymmetry or warped extra dimensions?
• An Emergent Higgs Alignment
• Improved effective potential of Gildener-Weinberg models
• $h\to {\rm Y}\gamma$ Decay: Smoking Gun Signature of Wrong-Sign $hb\bar{b}$ Coupling
• Analytic results for scalar-mediated Higgs boson production in association with two jets
• Exposing new scalars hiding behind the Higgs boson
• Heavy MSSM Higgs Interpretation of the LHC Run I Data
• New Tools for Dissecting the General 2HDM
• Production of neutral Higgs bosons associated with Z-boson and photon in 2HDM at future lepton colliders
• Some aspects of radiative corrections and non-decoupling effects of heavy Higgs bosons in two Higgs Doublet Model