Adding Flavor to the SMEFT

Abstract

We study the flavor structure of the lepton and baryon number--conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several well-motivated flavor symmetries and symmetry-breaking patterns that serve as competing hypotheses about the ultraviolet (UV) dynamics beyond the SM, not far above the TeV scale. In particular, we consider four different structures in the quark sector and seven in the charged lepton sector. The set of flavor-breaking spurions is (almost) always taken to be the minimal one needed to reproduce the observed charged fermion masses and mixings. For each case, we explicitly construct and count the operators to the first few orders in the spurion expansion, providing ready-for-use setups for phenomenological studies and global fits. We provide a Mathematica package SMEFTflavor to facilitate similar analyses for flavor symmetries not covered in this work.

arXiv comment55 pages, no figures, many tables. V2: Numerical estimates for the flavor spurions added. Referances expanded. Published in JHEP

References in corpus (101)

• Dimension-Six Terms in the Standard Model Lagrangian
• Minimal Flavour Violation: an effective field theory approach
• Gaugino Mass without Singlets
• Dynamical Supersymmetry Breaking Simplified
• The Strongly-Interacting Light Higgs
• 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
• The Standard Model as an Effective Field Theory
• More Model-Independent Analysis of b->s Processes
• B-physics anomalies: a guide to combined explanations
• Anomalies in $B$-decays and $U(2)$ flavour symmetry
• Flavor Physics Constraints for Physics Beyond the Standard Model
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• Minimal Flavor Violation in the Lepton Sector
• Confronting lepton flavor universality violation in B decays with high-$p_T$ tau lepton searches at LHC
• U(2) and Minimal Flavour Violation in Supersymmetry
• Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
• Flavour physics from an approximate U(2)^3 symmetry
• General Minimal Flavor Violation
• Relations between ΔM_{s,d} and B_{s,d}\to μ\barμin Models with Minimal Flavour Violation
• High-$p_T$ dilepton tails and flavour physics
• A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
• Towards the Ultimate SM Fit to Close in on Higgs Physics
• O new physics, where art thou? A global search in the top sector
• DsixTools: The Standard Model Effective Field Theory Toolkit
• Model-independent precision constraints on dimension-6 operators
• Energy helps accuracy: electroweak precision tests at hadron colliders
• Flavor from Minimal Flavor Violation & a Viable Randall-Sundrum Model
• Electroweak precision observables and Higgs-boson signal strengths in the Standard Model and beyond: present and future
• Reading the footprints of the B-meson flavor anomalies
• Right-handed charged currents in the era of the Large Hadron Collider
• Non-standard Charged Current Interactions: beta decays versus the LHC
• MFV SUSY: A Natural Theory for R-Parity Violation
• The Mono-Tau Menace: From $B$ Decays to High-$p_T$ Tails
• Constraints on New Physics in MFV models: a model-independent analysis of Delta F=1 processes
• Integrating out heavy particles with functional methods: a simplified framework
• Anomalous Triple Gauge Couplings in the Effective Field Theory Approach at the LHC
• Minimal Flavour Violation and Beyond
• Various definitions of Minimal Flavour Violation for Leptons
• Global constraints on anomalous triple gauge couplings in effective field theory approach
• With or without U(2)? Probing non-standard flavor and helicity structures in semileptonic B decays
• The Leptoquark Hunter's Guide: Large Coupling
• The UTfit Collaboration Report on the Status of the Unitarity Triangle beyond the Standard Model I. Model-independent Analysis and Minimal Flavour Violation
• Hadronic tau decays as New Physics probes in the LHC era
• Diboson Interference Resurrection
• Global Effective-Field-Theory analysis of New-Physics effects in (semi)leptonic kaon decays
• DsixTools 2.0: The Effective Field Theory Toolkit
• 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
• Novel angular dependence in Drell-Yan lepton production via dimension-8 operators
• Flavour symmetries in the SMEFT
• Hunting leptoquarks in monolepton searches
• A Model of Muon Anomalies
• Charm Physics Confronts High-$p_T$ Lepton Tails
• Global Constraints on Lepton-Quark Contact Interactions
• B-decay CP-asymmetries in SUSY with a U(2)^3 flavour symmetry
• Semi-leptonic $B$-physics anomalies: a general EFT analysis within $U(2{)}^n$ flavor symmetry
• Effective theories of universal theories
• Catching a New Force by the Tail
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Neutrino masses and LFV from minimal breaking of U(3)^5 and U(2)^5 flavor symmetries
• Global and optimal probes for the top-quark effective field theory at future lepton colliders
• Top and Beauty synergies in SMEFT-fits at present and future colliders
• Model-independent Bounds on the Standard Model Effective Theory from Flavour Physics
• NLO QCD corrections to SM-EFT dilepton and electroweak Higgs boson production, matched to parton shower in POWHEG
• Lepton Flavor Violation and Dilepton Tails at the LHC
• The impact of flavour data on global fits of the MFV SMEFT
• Anticipating Non-Resonant New Physics in Dilepton Angular Spectra at the LHC
• Diboson at the LHC vs LEP
• Parton distributions in the SMEFT from high-energy Drell-Yan tails
• STrEAMlining EFT Matching
• Effective Theory Approach to New Physics with Flavour: General Framework and a Leptoquark Example
• The Flavor of UV Physics
• Muonic Force Behind Flavor Anomalies
• SuperTracer: A Calculator of Functional Supertraces for One-Loop EFT Matching
• Precision Probes of QCD at High Energies
• The $\hat{H}$-Parameter: An Oblique Higgs View
• Bottom-Flavored Mono-Tau Tails at the LHC
• On the significance of new physics in $b\to s{\ell }^{+}{\ell }^{-}$ decays
• Less Minimal Flavour Violation
• Minimal Flavour Violation Waiting for Precise Measurements of Delta M_s, S_{psi phi}, A^s_SL, |V_ub|, gamma and B^0_{s,d} -> mu+ mu-
• Probing anomalous $t\bar{t}Z$ interactions with rare meson decays
• Studies of Dimension-Six EFT effects in Vector Boson Scattering
• Constraining anomalous gluon self-interactions at the LHC: a reappraisal
• High-energy EFT probes with fully differential Drell-Yan measurements
• Modular symmetry in the SMEFT
• Indirect and monojet constraints on scalar leptoquarks
• Standard Model parameters in the tadpole-free pure $\overline{\mathrm{MS}}$ scheme
• Giving top quark effective operators a boost
• Beyond Jarlskog: 699 invariants for CP violation in SMEFT
• Searching for New Physics with $b\bar{b}{\ell }^{+}{\ell }^{-}$ Contact Interactions
• Consistent Searches for SMEFT Effects in Non-Resonant Dijet Events
• From B-meson anomalies to Kaon physics with scalar leptoquarks
• Constraining the SMEFT with Bayesian reweighting
• LHC dijet angular distributions as a probe for the dimension-six triple gluon vertex
• Anomalous triple gauge couplings from $B$-meson and kaon observables
• CP violation and flavor invariants in the seesaw effective field theory
• SM EFT effects in Vector-Boson Scattering at the LHC
• Flavour alignment of New Physics in light of the $(g-2{)}_{\mu }$ anomaly
• Spelling Out Leptonic CP Violation in the Language of Invariant Theory

Cited by in corpus (5)

• Resolving the Flavor Structure in the MFV-SMEFT
• New Physics in $b\to s\mu \mu$: FCC-hh or a Muon Collider?
• Building blocks of the flavourful SMEFT RG
• Resonant leptoquark at NLO with POWHEG
• Discrete symmetries and Efficient Counting of Operators