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Related papers: Global SMEFT Fits at Future Colliders

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The Standard Model Effective Field Theory (SMEFT) and the Low Energy Effective Field Theory (LEFT) can be extended by adding additional spin 0, 1/2 and 1 dark matter particles which are singlets under the Standard Model (SM) gauge group. We…

High Energy Physics - Phenomenology · Physics 2022-10-13 Jason Aebischer , Wolfgang Altmannshofer , Elizabeth E. Jenkins , Aneesh V. Manohar

We present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT. This approach is based on the Monte Carlo replica method for deriving a faithful estimate of the…

High Energy Physics - Phenomenology · Physics 2019-05-01 Nathan P. Hartland , Fabio Maltoni , Emanuele R. Nocera , Juan Rojo , Emma Slade , Eleni Vryonidou , Cen Zhang

We study the top-quark production along with a Higgs boson and a jet (tHq) at the LHC experiment within the framework of the Standard Model Effective Field Theory (SMEFT). A strategy is developed to constrain the Wilson Coefficients (WC)…

High Energy Physics - Phenomenology · Physics 2023-09-29 Monoranjan Guchait , Arnab Roy

The current status of the quantities entering into the global electroweak fits is reviewed, highlighting changes since Summer 2003. These data include the precision electroweak properties of the Z and W bosons, the top-quark mass and the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Peter B. Renton

Results from the global Standard Model fit to electroweak precision data, including newest Tevatron measurements, are reviewed and discussed. The complete fit using also the constraints from the direct Higgs boson searches yields an upper…

High Energy Physics - Phenomenology · Physics 2014-11-20 Andreas Hoecker

The Future Circular Collider in the $\mathrm{e^{+}e^{-}}$ configuration offers the opportunity to significantly improve SM measurements with dedicated runs at the Z-pole, WW threshold, ZH (240 GeV), and $\mathrm{t}\bar{\mathrm{t}}$…

High Energy Physics - Experiment · Physics 2022-08-18 Eduardo Ploerer

One of the central goals of the physics program at the future colliders is to elucidate the origin of electroweak symmetry breaking, including precision measurements of the Higgs sector. This includes a detailed study of Higgs boson (H)…

If the electroweak phase transition (EWPT) is of strongly first order due to higher dimensional operators, the scale of new physics generating them is at the TeV scale or below. In this case the effective-field theory (EFT) neglecting…

High Energy Physics - Phenomenology · Physics 2018-08-01 Mikael Chala , Claudius Krause , Germano Nardini

After more than a decade from its discovery, the Higgs boson remains at the centre of the particle physics programme. While its couplings to vector bosons and third-generation fermions have been measured with impressive precision, the…

High Energy Physics - Phenomenology · Physics 2025-12-02 Ramona Gröber

The discovery of neutrino oscillations and masses provides strong motivation to extend the Standard Model by including right-handed neutrinos, which lead to heavy neutrino states that could exist at the electroweak scale. These states may…

High Energy Physics - Phenomenology · Physics 2025-05-19 Lucía Duarte , Daniel Chalençon Maisian , Tomás Urruzola

We present constraints on Wilson coefficients from a combined fit to data from top-quark and beauty-physics measurements within the Standard Model effective field theory. We consider present data on top-quark pair production and decay,…

High Energy Physics - Phenomenology · Physics 2021-05-13 Stefan Bißmann , Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger

The search for new sources of CP violation is a cornerstone of the beyond the Standard Model phenomenology programme at the LHC and beyond. We provide a comprehensive analysis of such searches at a range of future facilities with the aim of…

Recent electroweak precision measurements from e+e- and pbarp colliders are presented. Some emphasis is placed on the recent developments in the heavy flavor sector. The measurements are compared to predictions from the Standard Model of…

High Energy Physics - Experiment · Physics 2007-05-23 Marcel Demarteau

We study Higgs-boson pair production in the Standard Model Effective Field Theory (SMEFT) up to dimension six and in the Higgs Effective Field Theory (HEFT) at leading order in the effective theory expansion, and assess which description is…

High Energy Physics - Phenomenology · Physics 2026-02-19 Íñigo Asiáin , Ramona Gröber , Lorenzo Tiberi

Even if some experimental evidence suggests the existence of physics beyond the SM, no clues of new resonances can be found in the data. In the case their masses are much larger than the energies of current experiments, the SMEFT formalism…

High Energy Physics - Phenomenology · Physics 2025-11-18 Matteo Maltoni

Effective field theories (EFTs) of heavy particles coupled to the inflaton are rife with operator redundancies, frequently obscured by sensitivity to both boundary terms and field redefinitions. We initiate a systematic study of these…

High Energy Physics - Phenomenology · Physics 2025-08-08 Nathaniel Craig , Soubhik Kumar , Amara McCune

We examine the constraints that future lepton colliders would impose on the effective field theory describing modifications of top-quark interactions beyond the standard model, through measurements of the $e^+e^-\to bW^+\:\bar bW^-$…

High Energy Physics - Phenomenology · Physics 2017-09-01 Gauthier Durieux

With the discovery of the Higgs boson, the spectrum of particles in the Standard Model (SM) is complete. It is more important than ever to perform precision measurements and to test for deviations from SM predictions in the electroweak…

We discuss how to consistently use Effective Field Theories (EFTs) to set universal bounds on heavy-mediator Dark Matter at colliders, without prejudice on the model underlying a given effective interaction. We illustrate the method for a…

High Energy Physics - Phenomenology · Physics 2015-05-18 Davide Racco , Andrea Wulzer , Fabio Zwirner

I review the physics of the Higgs sector in the Standard Model and its minimal supersymmetric extension, the MSSM. I will discuss the prospects for discovering the Higgs particles at the upgraded Tevatron, at the Large Hadron Collider, and…

High Energy Physics - Phenomenology · Physics 2016-09-06 Abdelhak Djouadi