Experimental constraints on the coupling of the Higgs boson to electrons

Abstract

In the standard model (SM), the coupling of the Higgs boson to electrons is real and very small, proportional to the electron mass. New physics could significantly modify both real and imaginary parts of this coupling. We discuss experiments which are sensitive to the Higgs-electron coupling and derive the current bounds on new physics contributing to this coupling. The strongest constraint follows from the ACME bound on the electron electric dipole moment (EDM). We calculate the full analytic two-loop result for the electron EDM and show that it bounds the imaginary part of the Higgs-electron coupling to be less than 1.7 x 10^-2 times the SM electron Yukawa coupling. Deviations of the real part are much less constrained. We discuss bounds from Higgs decays, resonant Higgs production at electron colliders, Higgs mediated B -> e^+ e^- decays, and the anomalous magnetic moment of the electron. Currently, the strongest constraint comes from h -> e^+ e^- at the LHC, bounding the coupling to be less than ~600 times the SM Yukawa coupling. Important improvements can be expected from future EDM measurements as well as from resonant Higgs production at a next-generation high-luminosity e^+ e^- collider.

arXiv comment21 pages, 5 figures

References in corpus (28)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Big-Bang Nucleosynthesis
• New Measurement of the Electron Magnetic Moment and the Fine Structure Constant
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• 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
• New determination of the fine structure constant and test of the quantum electrodynamics
• B_{s,d} -> l+ l- in the Standard Model with Reduced Theoretical Uncertainty
• First Look at the Physics Case of TLEP
• Photonic penguins at two loops and m_t-dependence of BR[ B -> X_s l^+ l^-]
• Flavor Violating Higgs Decays
• Application of the Background-Field Method to the electroweak Standard Model
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• Testing new physics with the electron g-2
• Constraints on CP-violating Higgs couplings to the third generation
• Higgs boson decays to quarkonia and the Hccbar coupling
• Tenth-Order Electron Anomalous Magnetic Moment --- Contribution of Diagrams without Closed Lepton Loops
• Higgs-dependent Yukawa couplings
• An Exclusive Window onto Higgs Yukawa Couplings
• Gauge invariant Barr-Zee type contributions to fermionic EDMs in the two-Higgs doublet models
• Search for a standard model-like Higgs boson in the mu+ mu- and e+ e- decay channels at the LHC
• Modified Higgs branching ratios versus CP and lepton flavor violation
• Charming the Higgs
• Electroweak interactions and the muon g-2: bosonic two-loop effects
• Exotic Leptons: Higgs, Flavor and Collider Phenomenology
• Search for the Decays $B_{(s)}^0\to e^{+}{\mu }^{-}$ and $B_{(s)}^0\to e^{+}{e}^{-}$ in CDF Run II
• Potential precision of a direct measurement of the Higgs boson total width at a muon colliderr
• Searching for t->c(u)h with dipole moments
• Precision Measurements of Particle Masses using Jets at LEP2

Cited by in corpus (60)

• Higgs Boson Studies at Future Particle Colliders
• Combined explanations of $(g-2{)}_{\mu ,e}$ and implications for a large muon EDM
• Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation
• Implications of a Light "Dark Higgs" Solution to the $g_{\mu }-2$ Discrepancy
• The leptonic future of the Higgs
• Effective field theory approach to LHC Higgs data
• Light quark Yukawa couplings from Higgs kinematics
• Search for the Higgs boson decays $H\to ee$ and $H\to e\mu$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Collider Signatures of Flavorful Higgs Bosons
• Scalar dark matter in the radio-frequency band: atomic-spectroscopy search results
• Model Building from Asymptotic Safety with Higgs and Flavor Portals
• Generalized King linearity and new physics searches with isotope shifts
• Is the Higgs Mechanism of Fermion Mass Generation a Fact? A Yukawa-less First-Two-Generation Model
• The role of leptons in electroweak baryogenesis
• Exploring the CP-violating NMSSM: EDM Constraints and Phenomenology
• ISR effects for resonant Higgs production at future lepton colliders
• Probing the Charm Yukawa Coupling in Higgs + Charm Production
• Electron EDM in the complex two-Higgs doublet model
• Effective field theory, electric dipole moments and electroweak baryogenesis
• Search for the Electric Dipole Moment and anomalous magnetic moment of the tau lepton at tau factories
• Constraining the CP structure of Higgs-fermion couplings with a global LHC fit, the electron EDM and baryogenesis
• Light Resonances and the Low-$q^2$ Bin of $R_{K^{\ast }}$
• Two-Higgs-Doublet Model with Soft CP-violation Confronting Electric Dipole Moments and Colliders
• Precision Test of the Muon-Higgs Coupling at a High-energy Muon Collider
• The Lepton Flavour Violating Higgs Decays at the HL-LHC and the ILC
• Sum rules for CP-violating operators of Weinberg type
• Flavour Conservation in Two Higgs Doublet Models
• Probing the relaxed relaxion and Higgs-portal with S1 & S2
• Leptonic anomalous magnetic moments in $\nu$SMEFT
• The Inert Zee Model
• Measuring the electron Yukawa coupling via resonant s-channel Higgs production at FCC-ee
• The Flavor-locked Flavorful Two Higgs Doublet Model
• Electric dipole moment constraints on CP-violating light-quark Yukawas
• Probing Lepton Flavor Violation at the 13 TeV LHC
• Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM
• Global Constraints on Yukawa Operators in the Standard Model Effective Theory
• A fully differential SMEFT analysis of the golden channel using the method of moments
• Large Higgs-electron Yukawa coupling in 2HDM
• Electric dipole moment constraints on CP-violating heavy-quark Yukawas at next-to-leading order
• Searching for a solar relaxion/scalar with XENON1T and LUX
• The Muon Smasher's Guide
• Higgs Boson Contributions to the Electron Electric Dipole Moment
• Yukawa sector for LFV in $h\to \mu \tau$ and CP violation in $h\to \tau \tau$
• Current bounds on baryogenesis from complex Yukawa couplings of light fermions
• Bounds on CP-violating Higgs-gluon interactions: the case of vanishing light-quark Yukawa couplings
• ISR corrections to associated $HZ$ production at future Higgs factories
• Probing the CP-Violation effects in the $h\tau \tau$ coupling at the LHC
• Double-charming Higgs identification using machine-learning assisted jet shapes
• Constraining CP-violating electron-gluonic operators
• New Physics in Double Higgs Production at Future $e^{+}{e}^{-}$ Colliders
• Probe Charm Yukawa at the future $e^{-}p$ and $e^{+}{e}^{-}$ colliders
• Polarized-boson pairs at NLO in the SMEFT
• Light scalar beyond the Higgs mixing limit
• Monochromatization interaction region optics design for direct s-channel Higgs production at FCC-ee
• Electron EM-mass melting in strong fields
• $H\to e^{+}{e}^{-}$ at CEPC: ISR effect with MadGraph
• Circular and Linear ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ Colliders: Another Story of Complementarity
• Scalar production and decay to top quarks including interference effects at NLO in QCD in an EFT approach
• The hot Hagedorn Universe
• Beautiful and charming chromodipole moments