Complete One-Loop Matching for a Singlet Scalar in the Standard Model EFT

Abstract

We present the results of the first complete one-loop matching calculation between the real singlet scalar extension of the Standard Model and the Standard Model effective field theory (SMEFT) at dimension six. Beyond their immediate relevance to the precision calculation of observables in singlet extensions of the Standard Model, our results illustrate a variety of general features of one-loop matching. We explore the interplay between non-supersymmetric non-renormalization theorems, the logarithmic dependence of Wilson coefficients, and the relevance of mixed diagrams in theories with large scale separation. In addition, we highlight some of the subtleties involved in computing observables at next-to-leading order in SMEFT by mapping our results to the $T$ parameter at one loop.

arXiv comment21 pages

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• The Fermionic Universal One-Loop Effective Action
• One-loop matching in the SMEFT extended with a sterile neutrino
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• Role of dimension-eight operators in an EFT for the 2HDM
• Integrating out heavy fields in the path integral using the background-field method: general formalism
• Integrating Out New Fermions at One Loop
• Complete One-loop Matching of the Type-I Seesaw Model onto the Standard Model Effective Field Theory
• A Step Toward Model Comparison: Connecting Electroweak-Scale Observables to BSM through EFT and Bayesian Statistics
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• Uncovering the High Scale Higgs Singlet Model
• Neutrino seesaw models at one-loop matching: Discrimination by effective operators
• Classifying Standard Model Extensions Effectively with Precision Observables
• One-loop Matching of the Type-II Seesaw Model onto the Standard Model Effective Field Theory
• Universal Scalar Leptoquark Action for Matching
• Higgs Criticality beyond the Standard Model
• Radiative Decays of Charged Leptons in the Seesaw Effective Field Theory with One-loop Matching
• Singlet night in Feynman-ville: one-loop matching of a real scalar
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• Computing Tools for Effective Field Theories
• EFT Diagrammatica II: Tracing the UV origin of bosonic D6 CPV and D8 SMEFT operators
• Effective Field Theory of Chirally-Enhanced Muon Mass and Dipole Operators
• Relevance of one-loop SMEFT matching in the 2HDM
• One-loop Matching of Scotogenic Model onto Standard Model Effective Field Theory up to Dimension 7
• Complete One-loop Structure of the Type-(I+II) Seesaw Effective Field Theory
• Complete One-loop Renormalization-group Equations in the Seesaw Effective Field Theories
• Froggatt-Nielsen Meets the SMEFT
• Custodial Symmetry (Violation) in SMEFT
• EFT, decoupling, Higgs boson mixing, and higher dimensional operators
• Gauge hierarchy and metastability from Higgs-driven crunching
• One Formula To Match Them All: The Bispinor Universal One-Loop Effective Action
• Electroweak corrections to $g+g\to H_{l,h}$ and $H_{l,h}\to \gamma +\gamma$ in the Higgs-singlet extension of the Standard model
• Effective description of Nelson-Barr models and the theta parameter
• Use and reuse of SMEFT
• Light scalars in neutron star mergers
• New Physics Hints from Flavour
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