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Related papers: EFT results in the top quark sector in CMS

200 papers

We study axion-like particles (ALPs) whose dominant interactions are with gluons and third-generation quarks, and whose couplings to light Standard Model (SM) particles arise at one loop. These loop-induced effects lead to ALP decays and…

High Energy Physics - Phenomenology · Physics 2025-09-01 Jon Butterworth , Matthew Cullingworth , Joseph Egan , Fabian Esser , Veronica Sanz , Maria Ubiali

An overview of recent top quark measurements using the full Run II data set of CDF or D0 at the Tevatron is presented. Results are complementary to the ones at the LHC. Recent measurements of the production cross section of top quarks in…

High Energy Physics - Experiment · Physics 2015-05-22 Andreas W. Jung

Recent results of CMS at the top-antitop quark pair production threshold in the dileptonic and semileptonic decay channels are presented. The results were obtained analyzing $138~\mathrm{fb}^{-1}$ of $pp$ collision data taken at…

High Energy Physics - Experiment · Physics 2025-12-22 Jörn Bach

Top and anti-top quark pair production at LHC provides a unique setting to probe non-classical correlations at the TeV scale. We study quantum information (QI) properties of the $t\bar{t}$ spin state in $pp$ collisions at $\sqrt{s}=13$ TeV…

High Energy Physics - Phenomenology · Physics 2026-05-13 Amir Subba , Yu Shi

This report presents the results of the Models and Effective Field Theories Subgroup of the Off-Shell Interpretations Task Force in the LHC Higgs Working Group. The main goal of the subgroup was to discuss and advance the potential impact…

A review of recent measurements of top-quark properties is presented. Inclusive and differential top-quark pair charge asymmetry measurements using the full Run I dataset are found to be in agreement with the standard model (SM)…

High Energy Physics - Experiment · Physics 2016-05-19 Kelly Beernaert

We discuss the potential impacts on the CMSSM of future LHC runs and possible electron-positron and higher-energy proton-proton colliders, considering searches for supersymmetry via MET events, precision electroweak physics, Higgs…

High Energy Physics - Phenomenology · Physics 2016-04-05 O. Buchmueller , M. Citron , J. Ellis , S. Guha , J. Marrouche , K. A. Olive , K. de Vries , Jiaming Zheng

We assess the impact of top quark production at the LHC on global analyses of parton distributions (PDFs) and of Wilson coefficients in the SMEFT, both separately and in the framework of a joint interpretation. We consider the broadest top…

High Energy Physics - Phenomenology · Physics 2023-06-14 Zahari Kassabov , Maeve Madigan , Luca Mantani , James Moore , Manuel Morales Alvarado , Juan Rojo , Maria Ubiali

Recent analyses of top quark production in association with vector bosons are summarized, representing the most precise inclusive and differential cross section measurements of these processes to date. Proton-proton collision data at a…

High Energy Physics - Experiment · Physics 2022-02-15 David Walter

We study quantum coherence in top-antitop production at the LHC by comparing Standard Model predictions with CMS data across different kinematic regimes. Theory and experiment are statistically consistent in the near-threshold and boosted…

High Energy Physics - Phenomenology · Physics 2026-02-25 Saeed Haddadi , Majid Azizi , Artur Czerwinski

Effective Field Theory (EFT) is a general framework to parametrize the low-energy approximation to a UV model that is widely used in model-independent searches for new physics. The use of EFTs at the LHC can suffer from a 'validity' issue,…

High Energy Physics - Phenomenology · Physics 2026-02-03 Spencer Chang , Markus A. Luty , Teng Ma , Francesco Montagno , Andrea Wulzer

The sensitivity of particle-level fiducial cross section measurements from ATLAS, CMS and LHCb to a leptophobic top-colour model is studied. The model has previously been the subject of resonance searches. Here we compare it directly to…

High Energy Physics - Phenomenology · Physics 2022-08-23 M. M. Altakach , J. M. Butterworth , T. Ježo , M. Klasen , I. Schienbein

Recent results on top quark modelling and tuning are presented. In particular, the focus of this talk is on the studies on the definition and commissioning of the common Monte Carlo effort carried out by ATLAS and CMS within the LHCtopWG.…

High Energy Physics - Experiment · Physics 2022-01-19 Giulia Negro

The electroweak production in the $t$ channel is the most dominant production mode of single top quarks at the LHC. The ratio of the cross sections of the top quark and antiquark production provides an insight into the inner structure of…

High Energy Physics - Experiment · Physics 2019-01-17 Denise Mueller

Inclusive Higgs measurements at the LHC have limited resolution on the gluon fusion loops, being unable to distinguish the long-distance contributions mediated by the top quark from possible short-distance new physics effects. Using an…

High Energy Physics - Phenomenology · Physics 2018-05-01 Aleksandr Azatov , Christophe Grojean , Ayan Paul , Ennio Salvioni

We present recent measurements of the top quark mass by the ATLAS and CMS experiments in the $\mathrm{t}\overline{\mathrm{t}}$ lepton+jets, all-hadronic, and dilepton channels. In addition, we present a measurement using a topology enriched…

High Energy Physics - Experiment · Physics 2015-12-09 Nathan Mirman

Recent measurements of top-quark properties (excluding the top quark mass) at ATLAS and CMS are discussed. This includes latest updates of measurements of $t\bar{t}$ production asymmetries, spin correlations and $W$ helicity, as well as the…

High Energy Physics - Experiment · Physics 2015-10-19 Andreas W. Jung

A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data sample corresponds…

High Energy Physics - Experiment · Physics 2021-12-21 CMS Collaboration

In these proceedings we review the interplay between LHC searches for dark matter and direct detection experiments. For this purpose we consider two prime examples: the effective field theory (EFT) approach and the minimal supersymmetric…

High Energy Physics - Phenomenology · Physics 2015-05-12 Andreas Crivellin , Martin Hoferichter , Massimiliano Procura , Lewis C. Tunstall

We analyze the potential of future high-energy deep-inelastic scattering (DIS) experiments to probe new physics within the framework of the Standard Model Effective Field Theory (SMEFT). We perform a detailed study of SMEFT probes at a…

High Energy Physics - Phenomenology · Physics 2023-06-12 Chiara Bissolotti , Radja Boughezal , Kaan Simsek