QCD radiative corrections for $h\to b\bar{b}$ in the Standard Model Dimension-6 EFT

Abstract

We calculate the $\mathcal{O}({\alpha }_s)$ QCD corrections to the inclusive $h\to b\bar{b}$ decay rate in the dimension-6 Standard Model Effective Field Theory (SMEFT). The QCD corrections multiplying the dimension-6 Wilson coefficients which alter the $hb\bar{b}$-vertex at tree-level are proportional to the Standard Model (SM) ones, so next-to-leading order results can be obtained through a simple rescaling of the tree-level decay rate. On the other hand, contributions from the operators $Q_{bG}$ and $Q_{HG}$, which alter the $gb\bar{b}$-vertex and introduce a $hgg$-vertex respectively, enter at $\mathcal{O}({\alpha }_s)$ and induce sizeable corrections which are unrelated to the SM ones and cannot be anticipated through a renormalisation-group analysis. We present compact analytic results for these contributions, which we recommend to be included in future phenomenological studies.

arXiv comment10 pages, 1 figure. Matches journal version and includes updated references

References in corpus (74)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• 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
• HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
• Minimal Flavour Violation: an effective field theory approach
• The Strongly-Interacting Light Higgs
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• 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
• 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
• Evidence for the spin-0 nature of the Higgs boson using ATLAS data
• Measurements of the Higgs boson production and decay rates and coupling strengths using $pp$ collision data at $\sqrt{s}=7$ and $8$ TeV in the ATLAS experiment
• Effective Lagrangian for a light Higgs-like scalar
• On the spin and parity of a single-produced resonance at the LHC
• Higgs After the Discovery: A Status Report
• Model-Independent Bounds on a Light Higgs
• Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
• Constraining the Higgs boson width with ZZ production at the LHC
• Scalar Correlator at O(alpha_s^4), Higgs Decay into b-quarks and Bounds on the Light Quark Masses
• Correlator of the quark scalar currents and Γ_{tot}(H --> hadrons) at O(α_s^3) in pQCD
• Higgs windows to new physics through d = 6 operators: Constraints and one-loop anomalous dimensions
• Robust Determination of the Higgs Couplings: Power to the Data
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Towards the Ultimate SM Fit to Close in on Higgs Physics
• Bounding the Higgs width at the LHC using full analytic results for gg -> 2e 2μ
• Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
• Search for the $b\bar{b}$ decay of the Standard Model Higgs boson in associated $(W/Z)H$ production with the ATLAS detector
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Constraining the top-Higgs sector of the Standard Model Effective Field Theory
• Renormalization Group Scaling of Higgs Operators and Γ(h -> γγ)
• First Glimpses at Higgs' face
• The Gauge-Higgs Legacy of the LHC Run I
• Renormalization of dimension-six operators relevant for the Higgs decays $h\to \gamma \gamma ,\gamma Z$
• Higgs At Last
• A Bayesian view of the Higgs sector with higher dimensional operators
• Constraints on the off-shell Higgs boson signal strength in the high-mass $ZZ$ and $WW$ final states with the ATLAS detector
• Second Order QCD Corrections to Scalar and Pseudoscalar Higgs Decays into Massive Bottom Quarks
• Limits on Anomalous Couplings of the Higgs to Electroweak Gauge Bosons from LEP and LHC
• 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
• Scaling and tuning of EW and Higgs observables
• Higgs decay to two photons at one-loop in the SMEFT
• Bounding the Higgs Boson Width Through Interferometry
• NLO QCD Corrections to Higgs Pair Production including Dimension-6 Operators
• NLO Higgs Effective Field Theory and kappa-framework
• Higgs coupling measurements at the LHC
• NLO Inspired Effective Lagrangians for Higgs Physics
• Effective Theories and Measurements at Colliders
• Mixing Renormalization in Majorana Neutrino Theories
• Quark Mass Effects in Fermionic Decays of the Higgs Boson in $O({\alpha }_s^2)$ Perturbative QCD
• The couplings of the Higgs boson and its CP properties from fits of the signal strengths and their ratios at the 7+8 TeV LHC
• The $\mu \to e\gamma$ decay in a systematic effective field theory approach with dimension 6 operators
• Measuring extended Higgs sectors as a consistent free couplings model
• Automatic computations at next-to-leading order in QCD for top-quark flavor-changing neutral processes
• eHDECAY: an Implementation of the Higgs Effective Lagrangian into HDECAY
• Bounding the Higgs width at the LHC: complementary results from $H\to WW$
• Electroweak Effective Operators and Higgs Physics
• Top-quark decay into Higgs boson and a light quark at next-to-leading order in QCD
• Single Top Production at Next-to-Leading Order in the Standard Model Effective Field Theory
• Effective field theory approach to top-quark decay at next-to-leading order in QCD
• Fitting Higgs Data with Nonlinear Effective Theory
• 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
• Complete QCD Corrections of Order O(α_s^3) to the Hadronic Higgs Decay
• Detecting and Studying Higgs Bosons at a Photon-Photon Collider
• 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
• $Gamma(H\to b\bar{b})$ to order $\alpha {\alpha }_s$
• Through precision straits to next standard model heights
• Interference effects for Higgs-mediated Z-pair plus jet production
• Renormalization group evolution of the universal theories EFT
• Combining LEP and LHC to bound the Higgs Width
• Effective approach to top-quark decay and FCNC processes at NLO accuracy

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