Electroweak precision test of axion-like particles [PDF]
Journal of High Energy Physics, 2023 We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons.
Masashi Aiko, Motoi Endo
semanticscholar +1 more source
Impact of dimension-eight SMEFT operators in the electroweak precision observables and triple gauge couplings analysis in universal SMEFT [PDF]
Physical Review D, 2023 We perform a complete study of the electroweak precision observables and electroweak gauge boson pair production in terms of the SMEFT up to ${\cal O}(1/\Lambda^4)$ under the assumption of universal, C and P conserving new physics.
T. Corbett +5 more
semanticscholar +1 more source
Constraints on the dark sector from electroweak precision observables [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2023 We revisit the Standard Model fit to electroweak precision observables using the latest data and the Particle Data Group value of the mass of the W boson. This analysis is repeated for the value reported by CDF.
B. M. Loizos +4 more
semanticscholar +1 more source
Impact of the Recent Measurements of the Top-Quark and W-Boson Masses on Electroweak Precision Fits. [PDF]
Physical Review Letters, 2022 We assess the impact of the very recent measurement of the top-quark mass by the CMS Collaboration on the fit of electroweak data in the standard model and beyond, with particular emphasis on the prediction for the mass of the W boson.
J. de Blas +3 more
semanticscholar +1 more source
Lepton-charge and forward-backward asymmetries in Drell-Yan processes for precision electroweak measurements and new physics searches [PDF]
Nuclear Physics B, 2021 Precision determinations of Standard Model (SM) Electro-Weak (EW) parameters at the Large Hadron Collider (LHC) are dominated by uncertainties due to Parton Distribution Functions (PDFs).
J. Fiaschi +3 more
semanticscholar +1 more source
Electroweak precision tests for triplet scalars [PDF]
Nuclear Physics B, 2022 Electroweak precision observables are fundamentally important for testing the standard model (SM) or its extensions. The influences to observables from new physics within the electroweak sector can be expressed in terms of oblique parameters S, T, U. The
Yu Cheng +4 more
semanticscholar +1 more source
Flavorful electroweak precision observables in the Standard Model effective field theory [PDF]
Physical Review D, 2022 Electroweak precision observables (EWPO) measured at the W and Z poles provide stringent limits on possible beyond the Standard Model physics scenarios.
S. Dawson, P. Giardino
semanticscholar +1 more source
Changing patterns in electroweak precision fits with new color-charged states: Oblique corrections and the W -boson mass [PDF]
Physical Review D, 2022 The recent measurement by the CDF Collaboration of the 𝑊 boson mass is in significant tension with the Standard Model expectation, showing a discrepancy of seven standard deviations. A larger value of 𝑚 𝑊 affects the global electroweak fit, particularly the
Linda M. Carpenter +2 more
semanticscholar +1 more source
Electroweak phase transition in 2HDM under Higgs, Z-pole, and W precision measurements [PDF]
Journal of High Energy Physics, 2022 In this work we revisit the existence of a strong first order electroweak phase transition (SFOEWPT) and recent mW precision measurement in the Type-I and Type-II 2HDMs.
Huayang Song, W. Su, Mengchao Zhang
semanticscholar +1 more source
A sensitivity study of triboson production processes to dimension-6 EFT operators at the LHC
Journal of High Energy Physics, 2023 We present the first parton-level study of anomalous effects in triboson production in both fully and semi-leptonic channels in proton-proton collisions at 13 TeV at the Large Hadron Collider (LHC).
R. Bellan +8 more
doaj +1 more source