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相关论文: Disentangling SMEFT operators with future low-ener…

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In these proceedings we present the latest developments in our effort to include vector boson scattering (VBS) measurements into global SMEFT fits of LHC data. We present some updates to our initial study of arXiv:2101.03180 as well as…

高能物理 - 唯象学 · 物理学 2021-11-01 Raquel Gomez-Ambrosio , Giacomo Magni

We study constraints on the Standard Model Effective Field Theory (SMEFT) from neutrino oscillations in short-baseline reactor experiments. We calculate the survival probability of reactors antineutrinos at the leading order in the SMEFT…

高能物理 - 唯象学 · 物理学 2019-06-26 Adam Falkowski , Martín González-Alonso , Zahra Tabrizi

The Drell-Yan massive dilepton production in hadron-hadron collisions provides a unique tool, complementary to Deep Inelastic Scattering, for improving our understanding of hadronic substructure and in particular for testing parton…

高能物理 - 唯象学 · 物理学 2016-03-15 Eduardo Basso , Claude Bourrely , Roman Pasechnik , Jacques Soffer

This paper presents a measurement of the double-differential cross section for the Drell-Yan $Z/\gamma^{*} \rightarrow \ell^{+} \ell^{-}$ and photon-induced $\gamma\gamma \rightarrow \ell^{+} \ell^{-}$ processes where $\ell$ is an electron…

高能物理 - 实验 · 物理学 2016-09-06 ATLAS Collaboration

Given the absence of direct evidence for new resonances beyond the Standard Model (BSM) at the Large Hadron Collider (LHC) so far, a complementary strategy to search for new physics in an indirect way is provided by the Standard Model…

高能物理 - 唯象学 · 物理学 2025-01-16 Jaco ter Hoeve

The Fermi effective theory of the weak interaction helped identify the structure of the electroweak sector of the Standard Model, and the chiral effective Lagrangian pointed towards QCD as the theory of the strong interactions. The Standard…

高能物理 - 唯象学 · 物理学 2021-06-01 John Ellis

We discuss the impact of many previously neglected effects of higher dimensional operators when fitting to Electroweak Precision data (EWPD) in the Standard Model Effective Field Theory (SMEFT). We calculate the general case of $2…

高能物理 - 唯象学 · 物理学 2017-07-18 Laure Berthier , Michael Trott

The Standard Model Effective Field Theory (SMEFT) is constrained by current LHC data. Supposedly extensions of the Standard Model (SM) involving heavy particles can be constrained by matching onto the SMEFT. However, the reliability of…

高能物理 - 唯象学 · 物理学 2025-06-17 Manuel Drees , Cong Zhang

We present a systematic interpretation of vector boson scattering (VBS) and diboson measurements from the LHC in the framework of the dimension-six Standard Model Effective Field Theory (SMEFT). We consider all available measurements of VBS…

高能物理 - 唯象学 · 物理学 2021-07-14 Jacob J. Ethier , Raquel Gomez-Ambrosio , Giacomo Magni , Juan Rojo

The assumption that the Standard Model is an Effective Field Theory (SM EFT) of a more fundamental theory at a higher, than electroweak, energy scale, implies a growth of cross-sections for electroweak Vector Boson Scattering (VBS)…

高能物理 - 唯象学 · 物理学 2021-07-21 Athanasios Dedes , Paweł Kozów , Michał Szleper

The Standard Model extensions with vector-like states which have either zero hypercharge or zero weak isospin are rather poorly constrained by the electroweak precision measurements. Such new states would however modify the running of the…

高能物理 - 唯象学 · 物理学 2017-05-23 Christian Gross , Oleg Lebedev , Jose Miguel No

Precision measurements of the Drell-Yan (DY) cross section at the LHC constrain new physics scenarios that involve new states with electroweak (EW) charges. We analyze these constraints and apply them to models that can address the LHC…

高能物理 - 唯象学 · 物理学 2016-08-24 Florian Goertz , Andrey Katz , Minho Son , Alfredo Urbano

We investigate the impact of effective interactions of dimension-8 (dim-8) operators in the standard model effective field theory (SMEFT) on neutral meson mixing, focusing on the $K^0-\bar K^0$, $B_{d,s}-\bar B_{d,s}$, and $D^0-\bar D^0$…

高能物理 - 唯象学 · 物理学 2025-03-11 Yi Liao , Xiao-Dong Ma , Hao-Lin Wang

The Standard Model Effective Field Theory (SMEFT) provides a systematic and model-independent framework to study neutrino non-standard interactions (NSIs). We study the constraining power of the on-going neutrino oscillation experiments…

高能物理 - 唯象学 · 物理学 2021-03-17 Yong Du , Hao-Lin Li , Jian Tang , Sampsa Vihonen , Jiang-Hao Yu

The Standard Model effective field theory (SMEFT) is the tool of choice for studying deviations of Higgs couplings from the Standard Model predictions. The SMEFT is an expansion in an infinite tower of higher dimension operators, which is…

高能物理 - 唯象学 · 物理学 2023-05-12 Sally Dawson , Duarte Fontes , Samuel Homiller , Matthew Sullivan

We analyze the potential of the Universal SMEFT as a tool to study universal new physics in the neutral and charged Drell-Yan processes at the high-luminosity LHC. In order to do so, we generated pseudo-data containing the contributions of…

高能物理 - 唯象学 · 物理学 2026-05-20 Tyler Corbett , Jay Desai , O. J. P. Eboli , M. C. Gonzalez-Garcia , Matheus Martines

We calculate the $\mathcal{O}(\langle H^{\dagger} H \rangle^{2} / \Lambda^{4} )$ corrections to LEP electroweak precision data using the geometric formulation of the Standard Model Effective Field Theory (SMEFT). We report our results in…

高能物理 - 唯象学 · 物理学 2021-06-23 Tyler Corbett , Andreas Helset , Adam Martin , Michael Trott

We present a global analysis of lepton-flavor-specific operators in the Standard Model Effective Field Theory (SMEFT), combining data from collider and flavor physics experiments. We systematically explore various lepton-flavor scenarios,…

高能物理 - 唯象学 · 物理学 2025-11-11 Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger , Lara Nollen

We consider prospects for studying the parity-violating (PV) electroweak excitation of the \Delta(1232) resonance with polarized electron scattering. Given present knowledge of Standard Model parameters, such PV experiments could allow a…

核理论 · 物理学 2009-10-31 N. C. Mukhopadhyay , M. J. Ramsey-Musolf , S. J Pollock , J. Liu , H. -W. Hammer

This paper presents a first measurement of the cross-section for the charged-current Drell-Yan process $pp\rightarrow W^{\pm} \rightarrow \ell^{\pm} \nu$ above the resonance region, where $\ell$ is an electron or muon. The measurement is…

高能物理 - 实验 · 物理学 2025-07-28 ATLAS Collaboration