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LHC TOP WG meeting

from Wednesday, 27 May 2026 (14:00) to Friday, 29 May 2026 (13:00)
CERN (40/S2-D01)

        : Sessions
    /     : Talks
        : Breaks
27 May 2026
28 May 2026
29 May 2026
AM
09:00
Thursday morning (until 10:30) (40/S2-C01 - Salle Marie Sklodowska-Curie)
09:00 The inseparable three and four tops - Gauthier Durieux (CP3 - UCLouvain)  
09:30 Four-top-quark production in final states with hadronically decaying tau leptons and search for vector-like leptons at sqrt{s} = 13 TeV - Huiling Hua (Chinese Academy of Sciences (CN))  
10:00 Complementarity of di-top and four-top searches in interpreting possible signals of new physics - Romal Kumar  
10:30 --- Coffee break ---
11:00
Thursday morning (until 12:30) (40/S2-C01 - Salle Marie Sklodowska-Curie)
11:00 Updated NLO+NNLL Predictions for ttZ Production - Roger Balsach Garcia Cascon  
11:30 NNLO QCD corrections to top-quark pair production in association with a jet - Simone Zoia (University of Zurich)  
12:00 FCCee top physics studies - Xunwu Zuo (EPFL - Ecole Polytechnique Federale Lausanne (CH))  
09:15
Friday morning (until 10:45)
09:15 Theory predictions for ttW production at the LHC: status and prospects - Massimiliano Grazzini (University of Zurich (CH))  
09:45 s- and t-channel single-top production in POWHEG-BOX-RES - Tommaso Saracco (Nikhef)  
10:15 Measurement of differential -channel single top (anti)quark production cross-sections at 13 TeV with the ATLAS detector - Lukas Kretschmann (Bergische Universitaet Wuppertal (DE))  
10:45 --- Coffee break ---
11:15
Friday morning (until 12:55)
11:15 Measurement of the top-quark mass using decays with a meson at 13 TeV with the ATLAS detector - Frederic Derue (LPNHE-Paris CNRS/IN2P3)  
11:45 Measurement of single top quark and ttbar production cross sections in association with a photon in proton-proton collisions at sqrt{s} = 13 TeV - Ying An (Deutsches Elektronen-Synchrotron (DE))  
12:15 Calibration of the jet energy scale and resolution of small-radius jets using semileptonic events with the ATLAS detector - Adriana Dohnalova (Comenius University (SK))  
PM
14:00
Wednesday afternoon (until 15:45)
14:00 Introduction - Emanuele Re (Universita & INFN, Milano-Bicocca (IT)) Marcel Vos (IFIC Valencia (ES)) Jose Enrique Palencia Cortezon (Universidad de Oviedo (ES))  
14:15 Measurement of the top-quark production cross-section and charge asymmetry at LHCb - Menglin Xu (CERN)  
14:45 A Determination of the Top Mass 
from a Global PDF Analysis - Jaco ter Hoeve (The University of Edinburgh)  
15:15 Impact of differential cross section of top-quark pair production on PDF analysis and fit of the top-quark mass - Oleksandr Zenaiev Maria Vittoria Garzelli (Hamburg University (DE))  
15:45 --- coffee break ---
16:15
Wednesday afternoon (until 18:15)
16:15 Measurement of the element of the Vcb CKM matrix in decays with the ATLAS detector - Bowen Zhang (University of Warwick (GB))  
16:45 Summary of the quantum observables workshop at CERN - Sokratis Trifinopoulos (University of Zurich (CH))  
17:15 Prospects for quantum decoherence measurements at colliders - Rafael Aoude Rafael Aoude  
12:30 --- Lunch break ---
14:00
Thusrday afternoon (until 15:30)
14:00 Toponium dynamics and threshold effects in Monte Carlo event generators - Benjamin Fuks  
14:30 Cross-section enhancement near the top-anti-top production threshold with the ATLAS detector - Yoav Afik (University of Chicago (US))  
15:00 Observation of a pseudoscalar excess at the top quark pair production threshold in the single lepton channel - Yu-Heng Yu (University of Rochester (US))  
15:30 --- Coffee break ---
16:00
Thusrday afternoon (until 21:30)
16:00 Update on toponium simulations with Pythia - Torbjorn Sjostrand (Lund University (SE))  
16:30 Threshold Top-Quark Pair-Production: Cross Sections and Key Uncertainties - Giovanni Limatola  
17:00 Modelling ttbar at threshold: updates - Emanuele Re (Universita & INFN, Milano-Bicocca (IT))  
19:30 Dinner at Cafe de la Place (Meyrin)