Unravelling an extended quark sector through multiple Higgs production?

Abstract

In many new physics scenarios, the particle content of the Standard Model is extended and the Higgs couplings are modified, sometimes without affecting single Higgs production. We analyse two models with additional quarks. In these models, we compute double Higgs production from gluon fusion exactly at leading-order, and present analytical results in the heavy-quark mass ap- proximation. The experimental bounds from precision electroweak measurements and from the measured rate of single Higgs production combine to give significant restrictions for the allowed deviation of the double Higgs production rate from the Standard Model prediction as well as on the branching ratio for the Higgs decay into photons. The two models analysed eventually present a similar Higgs phenomenology as the Standard Model. We connect this result to the magnitude of the dimension six operators contributing to the gluon-fusion Higgs production.

39 pages, 15 figures. Minor correction to Fig. 3

References in corpus (16)

• 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
• New parton distributions for collider physics
• A custodial symmetry for Zbb
• The Electroweak Fit of the Standard Model after the Discovery of a New Boson at the LHC
• Impact of a Higgs boson at a mass of 126 GeV on the standard model with three and four fermion generations
• Higgs boson pair production at the LHC in the $b\bar{b}{W}^{+}{W}^{-}$ channel
• Less space for a new family of fermions
• Precision Constraints on Extra Fermion Generations
• Pseudo-Goldstone Higgs Production via Gluon Fusion
• Bounds and Decays of New Heavy Vector-like Top Partners
• Constraining extra-fermion(s) from the Higgs boson data
• Does $H\to \gamma \gamma$ Taste like vanilla New Physics?
• Total Width of 125 GeV Higgs Boson
• CP Violation in Higgs Diphoton Decay in Models with Vectorlike Heavy Fermions
• Can New Colored Particles Illuminate the Higgs?

Cited by in corpus (79)

• Higgs pair production at the LHC with NLO and parton-shower effects
• Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO
• Exploring Resonant di-Higgs production in the Higgs Singlet Model
• On the Higgs boson pair production at the LHC
• Higgs boson pair production in the D=6 extension of the SM
• New Physics in LHC Higgs boson pair production
• Higgs boson potential at colliders: status and perspectives
• Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production
• Pushing Higgs Effective Theory to its Limits
• Higgs Decays as a Window into the Dark Sector
• Higgs boson pair production in non-linear Effective Field Theory with full $m_t$-dependence at NLO QCD
• What's in the Loop? The Anatomy of Double Higgs Production
• Vector-like Fermions and Higgs Effective Field Theory Revisited
• On the two-loop virtual QCD corrections to Higgs boson pair production in the Standard Model
• Effective Field Theory for Higgs Plus Jet Production
• Resolving the Degeneracy in Single Higgs Production with Higgs Pair Production
• New Scalar Contributions to $h\to Z\gamma$
• LHC Higgs Signatures from Topflavor Seesaw Mechanism
• Triple Higgs boson production at a 100 TeV proton-proton collider
• A Double Take on New Physics in Double Higgs Production
• LHC Phenomenology of Type II Seesaw: Nondegenerate Case
• NLO Corrections to Double Higgs Production in the Higgs Singlet Model
• Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
• Higgs Physics: It ain't over till it's over
• $ttH$ Anomalous Coupling in Double Higgs Production
• Higgs Pair Production at NLO QCD for CP-violating Higgs Sectors
• Implications of LHC data on 125GeV Higgs-like boson for the Standard Model and its various extensions
• Double Higgs production at the 14 TeV LHC and the 100 TeV pp-collider
• Higgs Boson pair production merged to one jet
• Light Stops, Light Staus and the 125 GeV Higgs
• Little Higgs theory confronted with the LHC Higgs data
• Discovering Higgs boson pair production through rare final states at a 100 TeV collider
• Usefulness of effective field theory for boosted Higgs production
• The Z+photon and diphoton decays of the Higgs boson as a joint probe of low energy SUSY models at LHC
• Pair production of a 125 GeV Higgs boson in MSSM and NMSSM at the ILC
• LHC Phenomenology of the Type II Seesaw Mechanism: Observability of Neutral Scalars in the Nondegenerate Case
• Revisiting the non-resonant Higgs pair production at the HL-LHC
• Vector-like Bottom Quarks in Composite Higgs Models
• Higgs-boson-pair production $H(\to b\overline{b})H(\to \gamma \gamma )$ from gluon fusion at the HL-LHC and HL-100 TeV hadron collider
• Top Partners and Higgs Boson Production
• Custodial Leptons and Higgs Decays
• Measuring the 2HDM Scalar Potential at LHC14
• Measuring Trilinear Higgs Coupling in $WHH$ and $ZHH$ Productions at the HL-LHC
• Dark Two Higgs Doublet Model
• Learning what the Higgs boson is mixed with
• Higgs diphoton rate and mass enhancement with vector-like leptons and the scale of supersymmetry
• Invisible Decays in Higgs Pair Production
• Collider signatures of mirror fermions in the framework of Left Right Mirror Model
• Di-higgs enhancement by neutral scalar as probe of new colored sector
• A Supersymmetric Theory of Vector-like Leptons
• Impact of top-Higgs couplings on di-Higgs production at future colliders
• Correlation of $h\to \gamma \gamma$ and $Z\gamma$ in Type-II seesaw neutrino model
• Precision Higgs Measurements: Constraints from New Oblique Corrections
• Controlling the fine-tuning problem with singlet scalar dark matter
• Resolving the degeneracy in top quark Yukawa coupling with Higgs pair production
• Anomalous Higgs Couplings as a Window to New Physics
• Search for single production of vector-like top partners at the Large Hadron Electron Collider
• Resonant heavy Higgs searches at the HL-LHC
• Vacuum Stability and Higgs Diphoton Decay Rate in the Zee-Babu Model
• Inspecting the Higgs for New Weakly Interacting Particles
• Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC
• Disentangling new physics effects on non-resonant Higgs boson pair production from gluon fusion
• Vector Leptons in the Higgs Triplet Model
• Leptoquark-assisted Singlet-mediated Di-Higgs Production at the LHC
• Yukawa Corrections to Higgs Production in Top Partner Models
• Prospects of non-resonant di-Higgs searches and Higgs boson self-coupling measurement at the HE-LHC using machine learning techniques
• Measuring the trilinear Higgs boson self--coupling at the 100 TeV hadron collider via multivariate analysis
• Probing Trilinear Higgs Self-coupling at the HL-LHC via Multivariate Analysis
• Phenomenology of the trilinear Higgs coupling at proton-proton colliders
• Vector-like quarks and heavy coloured bosons at the LHC
• Lepton Polarization Asymmetries of $H\to \gamma {\tau }^{+}{\tau }^{-}$ Decays in Standard Model
• Top and bottom partners, Higgs boson on the brane, and the tth signal
• Revisiting Vector-like Quark Model with Enhanced Top Yukawa Coupling
• Distinguishing Signatures of top-and bottom-type heavy vectorlike quarks at the LHC
• Unraveling The Physics Behind Modified Higgs Couplings -- LHC vs. a Higgs Factory
• Di-Higgs production as a probe of flavor changing neutral Yukawa couplings
• Pair production of neutral Higgs particles in the B-LSSM
• Prospects for exotic $h\to 4\tau$ decays in single and di-Higgs boson production at the LHC and future hadron colliders
• Unification of Gauge Couplings and the Higgs Mass in Vector-Like Particle Theories Extended into NMSSM