Standard Model EFT and Extended Scalar Sectors

Abstract

One of the simplest extensions of the Standard Model is the inclusion of an additional scalar multiplet, and we consider scalars in the $SU(2{)}_L$ singlet, triplet, and quartet representations. We examine models with heavy neutral scalars, $m_H\sim 1-2$ TeV, and the matching of the UV complete theories to the low energy effective field theory. We demonstrate the agreement of the kinematic distributions obtained in the singlet models for the gluon fusion of a Higgs pair with the predictions of the effective field theory. The restrictions on the extended scalar sectors due to unitarity and precision electroweak measurements are summarized and lead to highly restricted regions of viable parameter space for the triplet and quartet models.

28 pages, 12 figures, 5 tables; v2: references added, other minor changes, version to appear in PRD

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Cited by in corpus (47)

• The Standard Model as an Effective Field Theory
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• Dimension-8 Operators in the Standard Model Effective Field Theory
• Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
• Putting SMEFT Fits to Work
• Current and future constraints on Higgs couplings in the nonlinear Effective Theory
• Is SMEFT Enough?
• Complete One-Loop Matching for a Singlet Scalar in the Standard Model EFT
• Higgs boson pair production in non-linear Effective Field Theory with full $m_t$-dependence at NLO QCD
• Interpreting electroweak precision data including the $W$-mass CDF anomaly
• Better Higgs-CP Tests Through Information Geometry
• Higgs Pair Production at NLO QCD for CP-violating Higgs Sectors
• Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
• Role of dimension-eight operators in an EFT for the 2HDM
• Determining the Shape of Higgs Potential at Future Colliders
• Higgs physics confronts the $M_W$ anomaly
• Electroweak Corrections to Higgs to $\gamma \gamma$ and $W^{+}{W}^{-}$ in the SMEFT
• A Step Toward Model Comparison: Connecting Electroweak-Scale Observables to BSM through EFT and Bayesian Statistics
• Exploring Extended Scalar Sectors with Di-Higgs Signals: A Higgs EFT Perspective
• Violation of custodial symmetry from W-boson mass measurements
• Uncovering the High Scale Higgs Singlet Model
• Classifying Standard Model Extensions Effectively with Precision Observables
• Higgs-Inflaton Mixing and Vacuum Stability
• Collider searches of scalar singlets across lifetimes
• Resolving the degeneracy in top quark Yukawa coupling with Higgs pair production
• Signature of Pseudo Nambu-Goldstone Higgs boson in its Decay
• Charting the Higgs self-coupling boundaries
• New Physics at Tera-$Z$: Precision Renormalised
• New Physics Scale from Higgs Observables with Effective Dimension-6 Operators
• Colorful Imprints of Heavy States in the Electroweak Effective Theory
• EFT Diagrammatica II: Tracing the UV origin of bosonic D6 CPV and D8 SMEFT operators
• Effective Field Theory of the Two Higgs Doublet Model
• Interference effects in resonant di-Higgs production at the LHC in the Higgs singlet extension
• Neutrino masses from new Weinberg-like operators: Phenomenology of TeV scalar multiplets
• Color-octet scalars in Dirac gaugino models with broken $R$ symmetry
• XEFT, the challenging path up the hill: dim = 6 and dim = 8
• Upper limit on first-order electroweak phase transition strength
• Custodial Symmetry (Violation) in SMEFT
• Flavor Violating Higgs Couplings in Minimal Flavor Violation
• EFT, decoupling, Higgs boson mixing, and higher dimensional operators
• Constraining the Higgs Trilinear Coupling from an $SU(2)$ Quadruplet with Bounded-from-Below Conditions
• New Physics Through Drell Yan SMEFT Measurements at NLO
• Higgs Quadruplet Impact on $W$ Mass Shift, Dark Matter, and LHC Signatures
• A composite Froggatt-Nielsen model of flavor
• On the reinterpretation of non-resonant searches for Higgs boson pairs
• Light scalars in neutron star mergers