A Global Fit to Extended Oblique Parameters

Abstract

The STU formalism of Peskin and Takeuchi is an elegant method for encoding the measurable effects of new physics which couples to light fermions dominantly through its effects on electroweak boson propagation. However, this formalism cannot handle the case where the scale of new physics is not much larger than the weak scale. In this case three new parameters (V, W and X) are required. We perform a global fit to precision electroweak data for these six parameters. Our results differ from what is found for just STU. In particular we find that the preference for S < 0 is not maintained.

Plain TeX, 11 pages, one figure (ps file enclosed), (replaced version corrects minor TeX problem, text unchanged) UdeM-LPN-TH-93-166, McGill-93/24, OCIP/C-93-9

Cited by in corpus (67)

• The Standard Model as an Effective Field Theory
• Extra Families, Higgs Spectrum and Oblique Corrections
• Updated Status of the Global Electroweak Fit and Constraints on New Physics
• Effective Theory Analysis of Precision Electroweak Data
• Electroweak Baryogenesis in Two Higgs Doublet Models and B meson anomalies
• Electroweak Precision Observables, New Physics and the Nature of a 126 GeV Higgs Boson
• Much Ado About Leptoquarks: A Comprehensive Analysis
• Gauge Kinetic Mixing and Leptophobic $Z^{\prime }$ in $E_6$ and SO(10)
• Precision Constraints on Extra Fermion Generations
• New Constraints (and Motivations) for Abelian Gauge Bosons in the MeV-TeV Mass Range
• Low-Energy Constraints on New Physics Revisited
• EWPD in the SMEFT to dimension eight
• Higgsless Electroweak Symmetry Breaking in Warped Backgrounds: Constraints and Signatures
• Probing nonstandard bosonic interactions via W-boson pair production at lepton colliders
• Electroweak Phase Transition and LHC Signatures in the Singlet Majoron Model
• Scalar Representations and Minimal Flavor Violation
• Interpreting the $W$-mass anomaly in the vectorlike quark models
• Light Octet Scalars, a Heavy Higgs and Minimal Flavour Violation
• The $\hat{H}$-Parameter: An Oblique Higgs View
• The P2 Experiment - A future high-precision measurement of the electroweak mixing angle at low momentum transfer
• Higgs production as a probe of Chameleon Dark Energy
• Non-Decoupling New Particles
• Signatures of Higgs-Triplet Representations at Tev--e+e- Colliders
• Implications of the new CDF-II $W$-boson mass on two-Higgs-doublet models
• Collider constraints on interactions of dark energy with the Standard Model
• Constraints on New Physics in the Electroweak Bosonic Sector from Current Data and Future Experiments
• A Minimal Four-Family Supergravity Model
• Hadronic and hadron-like physics of Dark Matter
• Muon specific two-Higgs-doublet model
• Very Light Charginos and Higgs Decays
• ATLAS Violating CP Effectively
• The Hierarchy Problem and the Self-Localized Higgs
• A Radiative Neutrino Mass Model with SIMP Dark Matter
• A leptoquark and vector-like quark extended model for the simultaneous explanation of the $W$ boson mass and muon $g-2$ anomalies
• Chiral-Symmetric Technicolor with Standard Model Higgs boson
• Changing patterns in electroweak precision with new color-charged states: Oblique corrections and the $W$ boson mass
• Power meets Precision to explore the Symmetric Higgs Portal
• Constraints on the relaxion mechanism with strongly interacting vector-fermions
• Additional Fermion Families and Precision Electroweak Data
• Negative s and Light New Physics
• Don't Stop Thinking About Leptoquarks: Constructing New Models
• The $Z\to b\bar{b}$ Excess and Top Decay
• Corrections to electroweak precision observables from mixings of an exotic vector boson in light of the CDF $W$-mass anomaly
• Prospects and Constraints for Vector-like MFV Matter at LHC
• Effective Theories and Electroweak Precision Constraints
• Possible Futures of Electroweak Precision: ILC, FCC-ee, and CEPC
• Mass-Matching in Higgsless
• Bounding Anomalous Gauge-Boson Couplings
• Heavy charged scalars from $c\bar{s}$ fusion: A generic search strategy applied to a 3HDM with $\mathrm{U}(1)\times \mathrm{U}(1)$ family symmetry
• Constraints on Masses of Charged PGBs in Technicolor Model from Decay $b\to s\gamma$
• Quantum Effects on Higgs-Boson Production and Decay due to Majorana Neutrinos
• Electroweak Constraints from the COHERENT Experiment
• NEW PHYSICS AND RECENT HIGH PRECISION ELECTROWEAK MEASUREMENTS
• Anomalous Vector-Boson Couplings in Majorana Neutrino Models
• An Extended Technicolor Model With QCD-like Symmetry Breaking
• $W$-Boson Mass Anomaly from a General $SU(2{)}_L$ Scalar Multiplet
• Custodial Symmetry (Violation) in SMEFT
• Electroweak Phase Transition in Two Scalar Singlet Model with pNGB Dark Matter
• A Neutrinophilic 2HDM as a UV Completion for the Inverse Seesaw Mechanism
• Models of hypercolor based on symplectic gauge group with three heavy vectorlike hyperquarks
• Can light Goldstone boson loops counter the `S-argument' against Technicolor?
• Fermion Mass Postdictions in a Generalized Extended Technicolour Scenario
• Oblique corrections when $m_W\ne m_Z\cos {\theta }_W$ at tree level
• Oblique corrections in general dark $U(1)$ models
• Constraints on Loryons in a Two Higgs Doublet Model
• Kinetic mixing, custodial symmetry, $Z$, $Z^{\prime }$ interactions and $Z^{\prime }$ production in hadron colliders
• THE SENSITIVITY TO NEW PHYSICS OF A LEP SCAN IN 1995