LHC TOP WG meeting

1 Dec 2021, 14:00 → 3 Dec 2021, 17:30 Europe/Zurich

Zoom mtg only (CERN)

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

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. 

Due to the Covid-19 pandemic, the meeting will take place remotely via zoom. 

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

LHCtopWG_dec21_day1.mp4

LHCtopWG_dec21_day2.mp4

LHCtopWG_dec21_day3.mp4

Wednesday, 1 December

14:00 → 14:10 Introduction

Speakers: 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_dec21.pdf

14:10 → 14:15 Discussion

14:15 → 14:35 CMS Highlight -- 1: tZq inclusive and differential cross section measurements

Speaker: Luka Lambrecht (Ghent University (BE))

lhctopwg_2021.pdf

14:35 → 14:45 Discussion

14:45 → 15:05 ATLAS Highlight -- 1: Energy asymmetry

Speaker: Alexander Basan (Johannes Gutenberg Universitaet Mainz (DE))

TEA-LHCTopWG-20211201.pdf

15:05 → 15:15 Discussion

15:15 → 15:35 Improving modelling of ttW [2108.07826, 2004.0955]

Speaker: Rikkert Frederix (Lund University)

frederix.pdf

15:35 → 15:45 Discussion

15:45 → 16:05 Top MC mass vs. pole mass relation in ATLAS and CMS

Speakers: Javier Alberto Aparisi Pozo (Univ. of Valencia and CSIC (ES)), Matteo Defranchis (CERN)

LHCtopWG_topmass.pdf

16:05 → 16:15 Discussion

16:15 → 16:45 Break

16:45 → 17:05 Comparison of tt differential cross sections in ATLAS and CMS

Speakers: Marino Romano (INFN Bologna (IT)), Olaf Behnke (Deutsches Elektronen-Synchrotron (DE))

pres211201.pdf

17:05 → 17:15 Discussion

17:15 → 17:35 Towards harmonizing modelling uncertainties in ATLAS and CMS

Speakers: Andrea Helen Knue (Albert-Ludwigs-Universitaet Freiburg (DE)), Dominic Hirschbuehl (Bergische Universitaet Wuppertal (DE)), Efe Yazgan (National Taiwan University (TW)), Jose Enrique Palencia Cortezon (Universidad de Oviedo (ES))

toplhcwg_December_2021_yazgan.pdf

17:35 → 17:45 Discussion

17:45 → 18:05 Common ATLAS and CMS MC sample and MC developments

Speakers: Giulia Negro (Purdue University (US)), Jens Roggel (Bergische Universitaet Wuppertal (DE))

LHCTopWGMeeting_MC.pdf

18:05 → 18:15 Discussion

18:15 → 18:35 B-hadron production at NNLO in tt events with leptonic decays at LHC [2102.08267]

Speaker: Terry Generet (RWTH Aachen University)

GeneretLHCTOPWG.pdf

18:35 → 18:45 Discussion

Thursday, 2 December

14:00 → 14:20 New EW top fit in the SMEFT [2107.13917]

Speaker: Marcos Miralles Lopez (IFIC (U.Valencia-CSIC))

topLHC_Dec2021.pdf

14:20 → 14:30 Discussion

14:30 → 14:50 High-order effects in the EFT top interpretation

Speaker: Eleni Vryonidou (University of Manchester (GB))

LHCTopWG.pdf

14:50 → 15:00 Discussion

15:00 → 15:20 CMS Highlight -- 2: Probing EFT operators in (t)tZ

Speaker: Abideh Jafari (Deutsches Elektronen-Synchrotron (DE))

Nadjieh_LHCtopWG_Dec21.pdf

15:20 → 15:30 Discussion

15:30 → 15:50 Towards ATLAS-CMS EFT combination

Speakers: Kirill Skovpen (Ghent University (BE)), Laura Barranco Navarro (Stockholm University (SE)), Peter Berta (Charles University, Prague (CZ))

talkLHCtopWG.pdf

15:50 → 16:00 Discussion

16:00 → 16:20 Recent FCNC searches by ATLAS and CMS

Speakers: Ana Peixoto (LPSC/CNRS (Grenoble, FR)), Samuel May (Boston University (US))

FCNCOverview_LHCTopWG_AnaPeixoto_02122021.pdf

16:20 → 16:30 Discussion

16:30 → 17:00 Break

17:00 → 17:20 tWZ production at the LHC in SMEFT [2111.03080]

Speaker: Hesham El Faham (Universite Catholique de Louvain (UCL) (BE))

lhctopwg_tWZ.pdf

17:20 → 17:30 Discussion

17:30 → 17:50 ATLAS Highlight -- 2: ttbar boosted differential cross sections

Speaker: Roman Lysak (Czech Academy of Sciences (CZ))

Lysak_ttbarBoostedXsection_LHCtopWG.2021.12.02.pdf

17:50 → 18:00 Discussion

18:00 → 18:20 Recent results in flavour violation and top polarisation by ATLAS and CMS

Speakers: Jordy Degens (Nikhef National institute for subatomic physics (NL)), Reza Goldouzian (University of Notre Dame (US))

top_WG_meeting_2021_12_02.pdf

18:20 → 18:30 Discussion

Friday, 3 December

14:00 → 14:20 Combination of ATLAS and CMS tt inclusive cross sections in Run1

Speakers: Jan Kieseler (CERN), Veronique Boisvert (Royal Holloway, University of London)

20211202_LHCtopWG_open.pdf

14:20 → 14:30 Discussion

14:30 → 14:50 Flavour Universality Violation and the top quark

Speakers: David Marzocca (INFN Trieste), David Marzocca

LFUV_and_top.pdf

14:50 → 15:00 Discussion

15:00 → 15:20 Overview of DM searches in the top sector

Speakers: Uli Haisch, Ulrich Andreas Haisch (University of Oxford (GB))

TopWG21.pdf

15:20 → 15:30 Discussion

15:30 → 16:00 Break

16:00 → 16:20 Anomalous gamma gamma --> t Tbar scattering at the LHC

Speaker: Andrea Bellora (Universita e INFN Torino (IT))

Bellora_LHCtopWG.pdf

16:20 → 16:30 Discussion

16:30 → 16:50 Cross sections for ttH production with the top quark MSbar mass [arXiv:2111.12505]

Speaker: Andrej Saibel (Deutsches Elektronen-Synchrotron (DE))

20211203_ttHinMSbar_topWG.pdf

16:50 → 17:00 Discussion

17:00 → 17:20 Triple top quark production in Standard Model [arXiv:2107.07629]

Speaker: Lev Dudko (M.V. Lomonosov Moscow State University (RU))

triple_top_lhctopwg.pdf

17:20 → 17:30 Discussion