Phenomenology of the Higgs Effective Lagrangian via FeynRules

Abstract

The Higgs discovery and the lack of any other hint for new physics favor a description of non-standard Higgs physics in terms of an effective field theory. We present an implementation of a general Higgs effective Lagrangian containing operators up to dimension six in the framework of FeynRules and provide details on the translation between the mass and interaction bases, in particular for three- and four-point interaction vertices involving Higgs and gauge bosons. We illustrate the strengths of this implementation by using the UFO interface of FeynRules capable to generate model files that can be understood by the MadGraph 5 event generator and that have the specificity to contain all interaction vertices, without any restriction on the number of external legs or on the complexity of the Lorentz structures. We then investigate several new physics effects in total rates and differential distributions for different Higgs production modes, including gluon fusion, associated production with a gauge boson and di-Higgs production. We finally study contact interactions of gauge and Higgs bosons to fermions.

36 pages, 6 figures, 6 tables; version accepted by JHEP

References in corpus (17)

• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• FeynRules - Feynman rules made easy
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
• Towards the Ultimate SM Fit to Close in on Higgs Physics
• Aspects of CP violation in the HZZ coupling at the LHC
• Determining the CP properties of the Higgs boson
• Further on up the road: $hhjj$ production at the LHC
• New Higgs interactions and recent data from the LHC and the Tevatron
• Beyond the Minimal Supersymmetric Standard Model: from theory to phenomenology
• A Mathematica Interface for FormCalc-generated Code
• Simulating spin-3/2 particles at colliders
• The Higgs: so simple yet so unnatural
• Automated mass spectrum generation for new physics
• Multilepton signals of gauge mediated supersymmetry breaking at the LHC
• Various Models Mimicking the SM Higgs Boson

Cited by in corpus (77)

• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• The SMEFTsim package, theory and tools
• Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators
• Measurements of Higgs boson properties in the diphoton decay channel with 36 fb${}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
• The Universal One-Loop Effective Action
• A global view on the Higgs self-coupling
• SMEFTsim 3.0 -- a practical guide
• On the impact of dimension-eight SMEFT operators on Higgs measurements
• NLO Higgs Effective Field Theory and kappa-framework
• A hidden confining world on the 750 GeV diphoton excess
• Higgs coupling measurements at the LHC
• Pushing Higgs Effective Theory to its Limits
• Limitations and Opportunities of Off-Shell Coupling Measurements
• Higgs pair production in vector-boson fusion at the LHC and beyond
• Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Boundary effective action for quantum Hall states
• Top-Quark Physics at the CLIC Electron-Positron Linear Collider
• Beyond Geolocating: Constraining Higher Dimensional Operators in $H\to 4\ell$ with Off-Shell Production and More
• Electroweak Higgs boson production in the standard model effective field theory beyond leading order in QCD
• Modeling BSM effects on the Higgs transverse-momentum spectrum in an EFT approach
• One-loop $\gamma \gamma \to W_L^{+}{W}_L^{-}$ and $\gamma \gamma \to Z_L{Z}_L$ from the Electroweak Chiral Lagrangian with a light Higgs-like scalar
• Higher Order QCD predictions for Associated Higgs production with anomalous couplings to gauge bosons
• NLO QCD corrections to SM-EFT dilepton and electroweak Higgs boson production, matched to parton shower in POWHEG
• Model-Independent Determination of the Triple Higgs Coupling at $e^{+}{e}^{-}$ Colliders
• CP violation with a dynamical Higgs
• Observation of top quark pairs produced in association with a vector boson in pp collisions at sqrt(s) = 8 TeV
• Exploring SMEFT in VH with Machine Learning
• Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the $H\to \gamma \gamma$ decay channel at $\sqrt{s}=8$ TeV with the ATLAS detector
• vh@nnlo-v2: New physics in Higgs Strahlung
• Constraining Higgs boson effective couplings at electron-positron colliders
• Top Partners and Higgs Boson Production
• Measurement of $VH$, $H\to b\bar{b}$ production as a function of the vector-boson transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Through precision straits to next standard model heights
• Effective Field Theory with Two Higgs Doublets
• Probing CP-violating Higgs and gauge boson couplings in the Standard Model effective field theory
• Probing Higgs boson couplings in H+$\gamma$ production at the LHC
• Jet substructure and probes of CP violation in Vh production
• Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Sensitivity to BSM effects in the Higgs $p_T$ spectrum within SMEFT
• $H\to {\tau }^{+}{\tau }^{-}\gamma$ as a Probe of the $\tau$ Magnetic Dipole Moment
• Study of Higgs Effective Couplings at Electron-Proton Colliders
• Disentangling new physics effects on non-resonant Higgs boson pair production from gluon fusion
• Contact Interactions in Higgs-Vector Boson Associated Production at the ILC
• Revisiting the $t\bar{t}hh$ channel at the FCC-hh
• New physics and signal-background interference in associated $pp\to HZ$ production
• Study of Higgs-gauge boson anomalous couplings through $e^{-}{e}^{+}\to W^{-}{W}^{+}H$ at ILC
• Observation of WW$\gamma$ production and search for H$\gamma$ production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Probing composite Higgs boson substructure at the HL-LHC
• CP-violating Higgs-gauge boson couplings in $H\nu \bar{\nu }$ production at three energy stages of CLIC
• Sensitivity study of anomalous HZZ couplings at future Higgs factory
• Measuring Higgs self couplings in the presence of VVH and VVHH at the ILC
• Boosted Higgses from chromomagnetic $b$'s: $b\bar{b}h$ at high luminosity
• Dipole-induced anomalous top quark couplings at the LHC
• Polarization measurement for the dileptonic channel of $W^{+}{W}^{-}$ scattering using generative adversarial network
• Dimension-six operators in Higgs pair production via vector-boson fusion at the LHC
• Testing for observability of Higgs effective couplings in triphoton production at FCC-hh
• Projections for Neutral Di-Boson and Di-Higgs Interactions at FCC-he Collider
• Sensitivity reach on anomalous Higgs couplings via triphoton production for the post-LHC circular high-energy hadron colliders
• Adding Pseudo-Observables to the Four-Lepton Experimentalist's Toolbox
• Dark sectors and enhanced $h\to \tau \mu$ transitions
• Theory of Dirac Dark Matter: Higgs Decays and EDMs
• Detecting anomaly in vector boson scattering
• Study on the sensitivity of the Higgs boson couplings in photon-photon collision at CLIC and muon collider
• Extracting Higgs Self-Coupling Constraints through Triple Higgs Boson Production at Future Hadron Colliders
• Constraining the anomalous Higgs boson coupling in $H$+$\gamma$ production
• Scattering unitarity with effective dimension-6 operators
• Constraints on the anomalous Higgs boson couplings in $Z\gamma \gamma$ production at muon collider
• Probing CP-violating Higgs-gauge Boson Couplings at Future Muon Collider
• Constraining capability of $Z\gamma h$ production at the ILC
• $WWh$ anomalous couplings at one loop from a seesaw variant of radiatively-induced neutrino masses
• Prospect study for measurement of $Hb\bar{b}$ coupling at the LHC and FCC-hh
• Analysis of anomalous $H\gamma \gamma$ coupling in light-by-light collision at future muon collider