Higgs decay to fermion pairs at NLO in SMEFT

Abstract

The calculation of next-to-leading order (NLO) perturbative corrections at fixed operator dimension in Standard Model Effective Field Theory (SMEFT) has been a topic of much recent interest. In this paper we obtain the NLO corrections from dimension-6 operators to the Higgs boson decays $h\to f\bar{f}$, where the fermions $f\in \{\mu ,\tau ,c\}$. This extends previous results for $h\to b\bar{b}$ to all phenomenologically relevant Higgs boson decays into fermions, and provides the basis for future precision analyses of these decays within effective field theory. We point out the benefits of studying ratios of decay rates into different fermions in SMEFT, the most surprising of which is enhanced sensitivity to anomalous $h\gamma \gamma$ and $hgg$ couplings induced by flavor-universal SMEFT operators, especially in scenarios where flavor-dependent Wilson coefficients are constrained by Minimal Flavor Violation.

arXiv comment28 pages

References in corpus (42)

• Dimension-Six Terms in the Standard Model Lagrangian
• Automatized One-Loop Calculations in 4 and D dimensions
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• Renormalization Group Evolution of the Standard Model Dimension Six Operators II: Yukawa Dependence
• Renormalization Group Evolution of the Standard Model Dimension Six Operators I: Formalism and lambda Dependence
• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• The SMEFTsim package, theory and tools
• DsixTools: The Standard Model Effective Field Theory Toolkit
• Electroweak Radiative Corrections for Collider Physics
• Lepton Flavor Violation in the Standard Model with general Dimension-Six Operators
• Higgs Physics at the CLIC Electron-Positron Linear Collider
• Feynman Rules for the Standard Model Effective Field Theory in $R_{\xi }$-gauges
• Putting SMEFT Fits to Work
• Higgs production in association with a top-antitop pair in the Standard Model Effective Field Theory at NLO in QCD
• On one-loop corrections in the standard model effective field theory; the $\Gamma (h\to \gamma \gamma )$ case
• The large top quark mass expansion for Higgs boson decays into bottom quarks and into gluons
• Higgs decay to two photons at one-loop in the SMEFT
• NLO QCD Corrections to Higgs Pair Production including Dimension-6 Operators
• NLO Higgs Effective Field Theory and kappa-framework
• The $\mu \to e\gamma$ decay in a systematic effective field theory approach with dimension 6 operators
• An NLO QCD effective field theory analysis of $W_{}^{+}{W}_{}^{-}$ production at the LHC including fermionic operators
• Single-top associated production with a $Z$ or $H$ boson at the LHC: the SMEFT interpretation
• Electroweak and QCD Corrections to $Z$ and $W$ pole observables in the SMEFT
• The leptonic future of the Higgs
• Electroweak Higgs boson production in the standard model effective field theory beyond leading order in QCD
• SMEFT and the Drell-Yan Process at High Energy
• The $Z$ decay width in the SMEFT: $y_t$ and $\lambda$ corrections at one loop
• High-Energy Limit of Mass-Suppressed Amplitudes in Gauge Theories
• Dimension-six electroweak top-loop effects in Higgs production and decay
• Virtual Top-Quark Effects on the H->bb-bar Decay at Next-to-Leading Order in QCD
• One-loop corrections to $h\to b\bar{b}$ and $h\to \tau \bar{\tau }$ decays in the Standard Model Dimension-6 EFT: four-fermion operators and the large-$m_t$ limit
• The decay $h\to \gamma \gamma$ in the Standard-Model Effective Field Theory
• Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics
• NLO corrections to $h\to b\bar{b}$ decay in SMEFT
• QCD radiative corrections for $h\to b\bar{b}$ in the Standard Model Dimension-6 EFT
• 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
• Higgs boson pair production at NNLO in QCD including dimension 6 operators
• Higgs boson production at large transverse momentum within SMEFT: analytical results
• Off-shell single-top-quark production in the Standard Model Effective Field Theory
• On the Resummation of Large QCD Logarithms in Higgs -> 2 Photons Decay

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• The Importance of Flavor in SMEFT Electroweak Precision Fits
• The Feynman rules for the SMEFT in the background field gauge
• Four-lepton Z-boson decay constraints on the SMEFT
• SMEFT analysis of charged lepton flavor violating $B$-meson decays
• Implications of the muon anomalous magnetic moment for the LHC and MUonE
• Constraining lepton flavor violating SMEFT $2q2\ell$ operators from low-energy cLFV processes
• Flavorful Electroweak Precision Observables in the Standard Model Effective Field Theory