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LHC TOP WG meeting

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Emanuele Re (Universita & INFN, Milano-Bicocca (IT)), Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Jose Enrique Palencia Cortezon (Universidad de Oviedo (ES)), Marcel Vos (IFIC Valencia (ES))
Description

This periodic open meeting of the LHC TOP Working Group takes place twice a year. The November '25 edition is fully online, via ZOOM. The meeting provides a forum for discussion between experimentalists and theorists on the latest developments in top quark physics. Everybody is welcome to attend; please register using the link below.  

Recordings of the sessions will be available below once the meeting is over.

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LHC TOP WG meeting
Zoom Meeting ID
65270875878
Host
Marcel Vos
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Zoom URL
  • Wednesday 5 November
    • Wednesday
      • 1
        Introduction
        Speakers: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Jose Enrique Palencia Cortezon (Universidad de Oviedo (ES)), Marcel Vos (IFIC Valencia (ES))
        introLHCtopWG_nov2025.pptx.pdf
      • 2
        Status of the top pole mass combination
        Speaker: Sebastian Wuchterl (CERN)
        mtpole_combination.pdf
      • 3
        Discussion of different approaches to break down the uncertainties in profile likelihood fits
        Speakers: Josh Bendavid (CERN), Dr Michele Pinamonti (Universita degli Studi di Udine (IT))
        Pinamonti_ErrorBreakdownATLASandCMS_5nov2025 (1).pdf
      • 4
        Differential cross-section measurements of coherent production of singly and doubly resonant top-quark in events with one lepton at √s = 13 TeV with the ATLAS detector

        https://arxiv.org/abs/2510.26476

        Speaker: Tadej Novak (Jozef Stefan Institute (SI))
        WbWb_semilep.pdf
      • 5
        A search for electroweak production in multileptonic final states at √s = 13 TeV with the ATLAS detector and bounds on effective field theory operators

        ATLAS-TOPQ-2019-18, https://arxiv.org/abs/2509.19038

        Speaker: Dongwon Kim (University of California Berkeley (US))
        LHC_TOPWG_ttwjEW_ttbarAsym_DongwonKim.pdf
    • Coffee break
    • Wednesday
      • 6
        Searching for top-philic heavy resonances in boosted four-top final states

        https://arxiv.org/abs/2507.05334

        Speaker: Luc DARME
        TopLHC_Darme_vpdf.pdf
      • 7
        CMS: Search for physics beyond the standard model in four and three top quark production events using proton-proton collisions at √s=13TeV

        CMS-PAS-TOP-24-008, https://cds.cern.ch/record/2944177?ln=en

        Speaker: Joscha Knolle (KIT - Karlsruhe Institute of Technology (DE))
        JK_251105_fourtop.pdf
      • 8
        Multi-top signals of vectorlike quarks at the LHC

        https://arxiv.org/abs/2508.14960

        Speaker: Elias Bernreuther (Heidelberg University)
  • Thursday 6 November
    • Thursday
      • 9
        Observation of a cross-section enhancement near the production threshold in √s = 13 TeV collisions with the ATLAS detector

        ATLAS-CONF-2025-008

        Speaker: Janna Katharina Behr (Deutsches Elektronen-Synchrotron (DE))
        LHCTopWG_251106_KBehr.pdf
      • 10
        Precision predictions for off-shell top-quark pair production and decays
        Speaker: Jonas Lindert (University of Sussex)
        bb4l@NNLO_TopWG.pdf
      • 11
        Towards a Systematic Uncertainty Model for the bb4l Powheg Monte Carlo sample

        ATL-PHYS-PUB-2025-036

        Speaker: Katharina Voss (Universitaet Siegen (DE))
        KVoss_LHCTOPWG25_bb4l_syst.pdf
    • Coffee break
    • Thursday
      • 12
        Top hadrons and formation time
        Speaker: Yu-Jie Zhang
        20251106_ZH_ZhangYuJie.pdf
      • 13
        Measurement of the top-quark Yukawa coupling from production in the lepton+jets final state using collisions at √s = 13 TeV with the ATLAS detector

        ATLAS-TOPQ-2021-11, https://arxiv.org/abs/2509.16039

        Speaker: Supriya Sinha (Deutsches Elektronen-Synchrotron (DE))
        LHCTopWG2025_YtCoupling_v2.pdf
      • 14
        Measurement of top quark charge asymmetries in jet-associated top quark pair production at √s = 13 TeV with CMS

        CMS-PAS-TOP-24-015

        Speaker: Hugo Alberto Becerril Gonzalez (Deutsches Elektronen-Synchrotron (DE))
        lhctop25.pdf
    • Thursday
      • 15
        Combination of the 𝚫𝝓 spin correlation variable measurements by ATLAS and CMS
        Speakers: Andreas Werner Jung (Purdue University (US)), Miriam Watson (University of Birmingham (GB))
        DeltaPhi_LHCTopWG_110625.pdf
      • 16
        TH: Single top t-channel reference cross sections + rare processes + ttt
        Speaker: Gauthier Durieux (CP3 - UCLouvain)
        durieux-lhc-top-wg-2025-11-06.pdf
      • 17
        Recent differential measurements in t-channel single top production from the ATLAS experiment
        Speaker: Lukas Kretschmann (Bergische Universitaet Wuppertal (DE))
        LHCTopWG2025_LukasKretschmann.pdf
      • 18
        Measurement of the t-channel single top quark cross section in pp collision data at √s = 5.02 TeV with CMS

        CMS-PAS-TOP-24-011, https://cds.cern.ch/record/2938634

        Speaker: Javier Del Riego Badas (Universidad de Oviedo (ES))
        LHCTopWG_tchannel5TeV.pdf
      • 19
        Search for the production of a Higgs boson in association with a single top quark in collisions at √s = 13 TeV with the ATLAS detector

        ATLAS-HIGP-2024-03, https://arxiv.org/abs/2508.14695

        Speaker: Valentina 🐧 Vecchio (University of Manchester)
        LHCTopWG_VV25.pdf
  • Friday 7 November
    • Friday
      • 20
        Measurement of the top quark pair production cross section in PbPb collisions at √sNN = 5.36 TeV with CMS

        CMS-PAS-HIN-24-021, https://cds.cern.ch/record/2942160

        Speaker: Andre Govinda Stahl (CERN)
        LHC TOP WG 2025.pdf
      • 21
        Recent measurements of the top-quark pole mass in dileptonic events at √s = 13 TeV with the ATLAS experiment

        ATLAS-TOPQ-2018-23, https://arxiv.org/abs/2507.02632
        ATLAS-TOPQ-2024-12, https://arxiv.org/abs/2509.15066

        Speaker: Davide Melini (Univ. of Valencia and CSIC (ES))
        Melini_LHCTopWG_7Nov25.pdf
      • 22
        SMEFT global fit future prospects: the role of top
        Speakers: Victor Miralles (University of Manchester), Victor Miralles (IFIC)
        VMiralles_TopWG.pdf
      • 23
        Decoherence in ttbar
        Speaker: Rafael Aoude
        Aoude_TopWG_2025.pdf
    • Coffee break
    • Friday
      • 24
        Summary of the requests for TH predictions from LHCTopWG
        Speaker: Emanuele Re (Universita & INFN, Milano-Bicocca (IT))
        2025_11_07_LHCtopWG_w_comments.pdf
      • 25
        Enhanced reconstruction of dileptonic top quark-antiquark events using supervised machine learning methods

        CMS-NOTE-2025-010 , https://cds.cern.ch/record/2944724

        Speaker: Ethan Colbert (Purdue University (US))
        TopReco_LHCTopWG_Nov-07-25.pdf
      • 26
        ATLAS: short talk herwig uncertainties (tbc)
        Speakers: Betsy Cunnett (University of Sussex (GB)), Betsy Cunnett
        071125_HerwigPS_LHCTOPWG.pdf
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