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Constraints on Wilson coefficients (WCs) corresponding to dimension-six operators of the standard model effective field theory (SMEFT) are determined from a simultaneous fit to seven sets of CMS measurements probing Higgs boson, electroweak…

高能物理 - 实验 · 物理学 2026-04-06 CMS Collaboration

We present a global interpretation of Higgs, diboson, and top quark production and decay measurements from the LHC in the framework of the Standard Model Effective Field Theory (SMEFT) at dimension six. We constrain simultaneously 36…

Measurements carried out or reinterpreted within the framework of effective field theory (EFT) will constitute a key component of the LHC legacy in the quest towards physics beyond the standard model. Numerous EFT measurements were already…

高能物理 - 实验 · 物理学 2021-02-22 Nicolas Tonon

This paper presents a combined analysis of the potential of a future electron-positron collider to constrain the Higgs, top and electro-weak (EW) sectors of the Standard Model Effective Field Theory (SMEFT). The leading contributions of…

高能物理 - 唯象学 · 物理学 2020-06-29 Sunghoon Jung , Junghwan Lee , Martin Perelló , Junping Tian , Marcel Vos

Wilson coefficients in dimension-six effective field theory are constrained in a combined fit to several ATLAS measurements. These inputs probe Higgs-boson processes across multiple production and decay modes, di-Higgs signatures in the…

高能物理 - 实验 · 物理学 2026-04-24 ATLAS Collaboration

Effective Field Theories (EFTs) capture effects from heavy dynamics at low energy and represent an essential ingredient in the context of Standard Model (SM) precision tests. This document gathers a number of relevant scenarios for heavy…

高能物理 - 唯象学 · 物理学 2020-09-04 D. Marzocca , F. Riva , J. Criado , S. Dawson , J. de Blas , B. Henning , D. Liu , C. Murphy , M. Perez-Victoria , J. Santiago , L. Vecchi , Lian-Tao Wang

With no direct evidence for new physics 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). SMEFT extends the SM by…

高能物理 - 实验 · 物理学 2026-02-04 Dongwon Kim

We present a first, consistent combination of measurements from top-quark and $B$ physics to constrain top-quark properties within the Standard Model Effective Field Theory (SMEFT). We demonstrate the feasibility and benefits of this…

高能物理 - 唯象学 · 物理学 2020-03-18 Stefan Bißmann , Johannes Erdmann , Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger

Signs of new physics are probed in the context of an Effective Field Theory using events containing one or more top quarks in association with additional leptons. Data consisting of proton-proton collisions at a center-of-mass energy of…

高能物理 - 实验 · 物理学 2021-01-27 Brent R. Yates

The CMS programme of indirect searches in the top-quark sector interprets precision measurements in the Standard Model Effective Field Theory (SMEFT) framework. These proceedings summarize recent CMS results highlighted in the TOP2025 talk:…

高能物理 - 实验 · 物理学 2026-01-12 Andrea Piccinelli

Recent measurements at the Large Hadron Collider allow for a robust and precise characterisation of the electro-weak interactions of the top quark. We present the results of a global analysis at next-to-leading order precision including…

高能物理 - 唯象学 · 物理学 2022-02-14 Víctor Miralles , Marcos Miralles López , María Moreno Llácer , Ana Peñuelas , Martín Perelló , Marcel Vos

Projecting measurements of the interactions of the known Standard Model (SM) states into an effective field theory (EFT) framework is an important goal of the LHC physics program. The interpretation of measurements of the properties of the…

高能物理 - 唯象学 · 物理学 2019-02-19 Ilaria Brivio , Michael Trott

This contribution presents recent cross section measurements for top quark pair production (tt) and single top quark production in association with a W boson (tW) in proton-proton collisions at the CMS experiment at LHC. For tt production,…

高能物理 - 实验 · 物理学 2026-02-04 Javier del Riego

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. We…

高能物理 - 唯象学 · 物理学 2023-01-04 J. de Blas , M. Pierini , L. Reina , L. Silvestrini

Recognizing the potential of effective field theories to posit multiple BSM scenarios in similar footing, with a possibility to compare them, we inspect the effects of 11 single scalar-multiplet extensions of the SM on the combined set of…

高能物理 - 唯象学 · 物理学 2021-04-28 Anisha , Supratim Das Bakshi , Joydeep Chakrabortty , Sunando Kumar Patra

Recent developments in the measurement of precision electroweak measurements are summarised, notably new results on the mass of the top quark and mass and width of the W boson. Predictions of the Standard Model are compared to the…

高能物理 - 唯象学 · 物理学 2008-11-26 Martin W. Grunewald

A combination of measurements sensitive to anomalous quartic electroweak gauge boson couplings is presented using proton-proton collision data collected by the ATLAS detector at $\sqrt{s} = 13$ TeV at the LHC. Contributing analyses include…

高能物理 - 实验 · 物理学 2026-03-20 ATLAS Collaboration

A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at $\sqrt{s}$ = 13 TeV at the LHC during 2016-2018. The data set…

高能物理 - 实验 · 物理学 2024-01-04 CMS Collaboration

With the absence of the direct detection of new physics and the large data set collected at the LHC, the search for indirect effects in precision measurements became popular. Effective field theories enable to interpret these effects that…

高能物理 - 实验 · 物理学 2021-12-03 Dennis Schwarz

In view of the discovery of a new boson by the ATLAS and CMS Collaborations at the LHC, we present an update of the global Standard Model (SM) fit to electroweak precision data. Assuming the new particle to be the SM Higgs boson, all…

高能物理 - 唯象学 · 物理学 2013-06-05 M. Baak , M. Goebel , J. Haller , A. Hoecker , D. Kennedy , R. Kogler , K. Moenig , M. Schott , J. Stelzer
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