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LHC TOP WG meeting

→ Europe/Zurich
Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
Description

This periodic open meeting of the LHC TOP Working Group takes place twice a year at CERN. 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. 

The meeting will take place remotely via zoom. 

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

OpenMeeting_LHCtopWG_01122023.mp4
OpenMeeting_LHCtopWG_29112023.mp4
OpenMeeting_LHCtopWG_30112023.mp4
Registration
Registration
129
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  • Wednesday 29 November
    • Session 1
      Conveners: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
      • 1
        Introduction
        Speakers: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
        LHCtopWG_open_meeting_intro_nov23.pdf
      • 14:20
        Discussion
      • 2
        CMS highlight 1: Search for extra Higgs bosons through same-sign top-quark production in association with an extra jet
        Speaker: Efe Yazgan (National Taiwan University (TW))
        toplhcwg_29nov2023_eyazgan.pdf
      • 14:50
        Discussion
      • 3
        ATLAS highlight 1: Inclusive and differential ttZ cross-section measurement, including interpretations, with the full ATLAS Run 2 dataset

        ATLAS-CONF-2023-065: https://cds.cern.ch/record/2873519
        https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2023-065

        Speaker: Dominik Babal (Slovak Academy of Sciences (SK))
        ttZ_LHC_topWG_v4.pdf
      • 15:20
        Discussion
    • 15:30
      Coffee break
    • Session 2
      Conveners: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
      • 4
        Comparison of the latest CMS and ATLAS measurements on FCNC in the top-quark sector
        Speaker: Daniel Spitzbart (Boston University (US))
        tHq_FCNC_LHC_TOP_WG.pdf
      • 16:20
        Discussion
      • 5
        Progress report on a combined EFT analysis of ATLAS and CMS results
        Speakers: Baptiste Ravina (Georg August Universitaet Goettingen (DE)), Kirill Skovpen (Ghent University (BE))
        kskovpenLHCtopWG.pdf
      • 16:50
        Discussion
      • 6
        Indirect constraints on top quark operators from a global SMEFT analysis

        https://arxiv.org/abs/2310.00047

        Speaker: Alfredo Stanzione
        Talk_AS_Indirect_Constraints.pdf
      • 17:20
        Discussion
  • Thursday 30 November
    • Session 1: Modeling of top-quark final states
      Conveners: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
      • 7
        Latest developments in Herwig 7
        Speaker: Simon Platzer (University of Graz (AT))
        slides-top.pdf
      • 10:20
        Discussion
      • 8
        Studies on the improvement of the matching uncertainty definition in top-quark processes simulated with Powheg+Pythia 8

        ATL-PHYS-PUB-2023-029: https://cds.cern.ch/record/2872787

        Speaker: Katharina Voss (Universitaet Siegen (DE))
        ATLAS_TopModelling_LHCTopWGNov23.pdf
      • 10:50
        Discussion
      • 9
        Modeling of tTbar with Powheg bb4l
        Speaker: Laurids Jeppe (Deutsches Elektronen-Synchrotron (DE))
        LHCTopWG bb4l 301123 v3.pdf
      • 11:20
        Discussion
      • 10
        Top quark physics with Pythia
        Speaker: Christian Preuss (University of Wuppertal)
        top_wg_ctp.pdf
      • 11:50
        Discussion
      • 11
        Decay matrix element corrections in MC@NLO-type simulations with Pythia8
        Speaker: Stefano Frixione (INFN)
        topmec.pdf
      • 12:20
        Discussion
    • 12:30
      Lunch break
    • 12
      SUSY searches in tTbar+MET and tc+MET final states with ATLAS

      ATLAS conference notes:
      https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2023-043/
      and
      https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2023-058/

      Speaker: Simran Sunil Gurdasani (Albert Ludwigs Universitaet Freiburg (DE))
      LHC_TopWG_ttMET_tcMET_Gurdasani_animated.pdf
    • 14:20
      Discussion
    • Session 2: Top-philic axion festival
      Convener: Fabio Maltoni (Universite Catholique de Louvain (BE))
      • 13
        On the coupling of axion-like particles to the top quark

        https://arxiv.org/abs/2303.17634

        Speaker: Fabian Esser
        ALPs_Top_LHCTop.pdf
      • 14
        ALP effects in top-pair production
        Speaker: Vu Phan
        Top-in-the-ALPs.pdf
      • 15
        Phenomenology of an elusive top-philic ALP at the LHC
        Speaker: Alberto Mariotti (Vrije Universiteit Brussel)
        TopPhilic_ALP_Mariotti.pdf
      • 16
        Distinguishing axion-like particles and CP-odd Higgs bosons in ttbar final states at the LHC
        Speaker: Christian Schwanenberger (Deutsches Elektronen-Synchrotron (DE))
        LHCTopWG_ALPs_Pseudoscalar.pdf
    • 15:30
      Discussion
    • 17
      Higgs interference effects in top-quark pair production in the 1HSM

      2309.16759: https://inspirehep.net/literature/2704864

      Speaker: Alexander Lind (Subatech, IMT Atlantique)
      Lind_LHCTopWG.pdf
    • 16:15
      Discussion
    • 18
      ATLAS highlight 2: Ttbar+jets in ATLAS and a comparison with the CMS triple differential cross-section measurement, and tTbar in pPb collisions
      Speakers: Henriette Aarup Petersen (Deutsches Elektronen-Synchrotron (DE)), Miguel Angel Principe Martin (Universidad Autónoma de Madrid)
      TopLHC_231130_mprincipe.pdf
    • 16:50
      Discussion
  • Friday 1 December
    • Session 1: Quantum entanglement in tTbar production
      Conveners: Prof. Fabio Maltoni (Universite Catholique de Louvain (UCL) (BE) and Università di Bologna), Maria Aldaya Martin (DESY), Wolfgang Wagner (Bergische Universitaet Wuppertal (DE))
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