Electroweak Corrections to Higgs to $\gamma \gamma$ and $W^{+}{W}^{-}$ in the SMEFT

Abstract

Higgs decays to gauge boson pairs are a crucial ingredient in the study of Higgs properties, with the decay $H\to \gamma \gamma$ being particularly sensitive to new physics effects. Assuming all potential new physics occurs at energies much above the weak scale, deviations from Standard Model predictions can be parameterized in terms of the coefficients of an effective field theory (SMEFT). When experimental limits on the SMEFT coefficients reach an accuracy of a few percent, predictions must be done beyond the lowest order in the SMEFT in order to match theory and experimental accuracy. This paper completes a program of computing the one-loop electroweak SMEFT corrections to $H\to V{V}^{\prime }$, $V=W^{\pm },Z,\gamma$. The calculation of the real contribution to $H\to W^{+}{W}^{-}\gamma$ is performed by mapping two-loop amplitudes to the $3-$ body phase space.

21 pages, 3 figures; V2: Version accepted for publication

References in corpus (12)

• FIRE5: a C++ implementation of Feynman Integral REduction
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• 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
• Model-independent precision constraints on dimension-6 operators
• An NLO QCD effective field theory analysis of $W_{}^{+}{W}_{}^{-}$ production at the LHC including fermionic operators
• eHDECAY: an Implementation of the Higgs Effective Lagrangian into HDECAY
• Higgs Decays to $ZZ$ and $Z\gamma$ in the SMEFT: an NLO analysis
• Interpreting top-quark LHC measurements in the standard-model effective field theory
• Dimension-six electroweak top-loop effects in Higgs production and decay
• The decay $h\to \gamma \gamma$ in the Standard-Model Effective Field Theory
• QCD radiative corrections for $h\to b\bar{b}$ in the Standard Model Dimension-6 EFT
• Effect of Fermionic Operators on the Gauge Legacy of the LHC Run I

Cited by in corpus (25)

• Automated one-loop computations in the SMEFT
• SMEFTsim 3.0 -- a practical guide
• EWPD in the SMEFT to dimension eight
• Electroweak and QCD Corrections to $Z$ and $W$ pole observables in the SMEFT
• SMEFT and the Drell-Yan Process at High Energy
• Role of dimension-eight operators in an EFT for the 2HDM
• SmeftFR -- Feynman rules generator for the Standard Model Effective Field Theory
• NLO corrections to $h\to b\bar{b}$ decay in SMEFT
• SMEFT Corrections to $Z$ Boson Decays
• SMEFiT: a flexible toolbox for global interpretations of particle physics data with effective field theories
• The decay $h\to Z\gamma$ in the Standard-Model Effective Field Theory
• Top quark decay at next-to-leading order in the Standard Model Effective Field Theory
• Consistent higher order $\sigma (\mathcal{G}\mathcal{G}\to h)$, $\Gamma (h\to \mathcal{G}\mathcal{G})$ and $\Gamma (h\to \gamma \gamma )$ in geoSMEFT
• Characters and Group Invariant Polynomials of (Super)fields: Road to "Lagrangian"
• Hilbert Series and Plethystics: Paving the path towards 2HDM- and MLRSM-EFT
• Classifying Standard Model Extensions Effectively with Precision Observables
• Integrating out heavy scalars with modified EOMs: matching computation of dimension-eight SMEFT coefficients
• Constraining anomalous Higgs boson couplings to virtual photons
• Higgs decays to two leptons and a photon beyond leading order in the SMEFT
• Dijets at Tevatron Cannot Constrain SMEFT Four-Quark Operators
• Jet Substructure Measurements of Interference in Non-Interfering SMEFT Effects
• Extended Higgs sectors, effective field theory and Higgs phenomenology
• New Physics Through Drell Yan SMEFT Measurements at NLO
• $CP$-odd form factor in the $HWW$ vertex
• Flavorful Electroweak Precision Observables in the Standard Model Effective Field Theory