Results 91 to 100 of about 1,585 (136)

M W helps select Z ' models for b → s ℓ ℓ anomalies. [PDF]

open access: yesEur Phys J C Part Fields, 2022
Allanach B, Davighi J.
europepmc   +1 more source

Flavourful SMEFT likelihood for Higgs and electroweak data [PDF]

open access: yes, 2019
We perform an updated fit to LHC Higgs data and LEP electroweak precision tests in the framework of the Standard Model Effective Field Theory (SMEFT). We assume a generic structure of the SMEFT operators without imposing any flavour symmetries.
Straub, David, Falkowski, Adam
core  

A proof of concept for matchete: an automated tool for matching effective theories. [PDF]

open access: yesEur Phys J C Part Fields, 2023
Fuentes-Martín J   +4 more
europepmc   +1 more source

A viable Le-Lμ model with μ→e violation. [PDF]

open access: yesEur Phys J C Part Fields, 2023
Ardu M, Kirk F.
europepmc   +1 more source

Staying on Top of SMEFT-Likelihood Analyses [PDF]

open access: yes
We present a new global SMEFT analysis of LHC data in the top sector. After updating our set of measurements, we show how public ATLAS likelihoods can be incorporated in an external global analysis and how our analysis benefits from the additional ...
Madigan, Maeve   +3 more
core   +1 more source

ATLAS EFT results in the top quark sector

open access: yesSciPost Physics Proceedings
With no evidence of direct production of beyond the Standard Model (BSM) particles at the TeV scale, deviations from the Standard Model (SM) can be explored systematically through Effective Field Theories (EFTs) such as the Standard Model EFT (SMEFT ...
Dongwon Kim, on behalf of the ATLAS collaboration
doaj   +1 more source

Missing energy plus jet in the SMEFT

open access: yesJournal of High Energy Physics
Abstract We study the production of dineutrinos in proton-proton collisions, with large missing transverse energy and an energetic jet as the experimental signature. Recasting a search from the ATLAS collaboration we work out constraints on semileptonic four-fermion operators, gluon and electroweak dipole operators and Z-penguins ...
Gudrun Hiller, Daniel Wendler
openaire   +3 more sources

Identifying CP Basis Invariants in SMEFT [PDF]

open access: yes
Building on our automated framework that uses ring diagrams for classifying CP basis invariants [1], this paper broadens the application of the methodology with more extensive examples and a wider scope of theoretical frameworks.
Yu, Jiang-Hao   +2 more
core   +1 more source

Constraining anomalous Wtb and related SMEFT couplings using low-energy and electroweak precision observables

open access: yesJournal of High Energy Physics
We investigate constraints on couplings of Standard Model effective field theory (SMEFT) operators contributing to Wtb effective vertex at tree level. We study the one-loop level impact of these couplings on the low-energy flavour changing charged and ...
Subhajit Kala   +3 more
doaj   +1 more source

Lepton flavor violation and dilepton tails at the LHC. [PDF]

open access: yesEur Phys J C Part Fields, 2020
Angelescu A, Faroughy DA, Sumensari O.
europepmc   +1 more source

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