LHC TOP WG meeting

9 Nov 2022, 13:00 → 11 Nov 2022, 18:00 Europe/Zurich

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. 

The meeting will take place remotely via zoom. 

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

Attendance_November_2022_Open_Meeting.pdf

LHCtopWG_09_11_2022_Open_Meeting.mp4

LHCtopWG_10_11_2022_Open_Meeting_recording

LHCtopWG_11_11_2022_Open_Meeting.mp4

Wednesday, 9 November

13:00 → 13:20 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_nov22.pdf

13:20 → 13:30 Discussion

13:30 → 13:50 CMS-Highlight-1: First tt cross section measurement at 13.6 TeV

Speaker: Laurids Jeppe (Deutsches Elektronen-Synchrotron (DE))

LHCTopWG 091122 final.pdf

13:50 → 14:00 Discussion

14:00 → 14:20 ATLAS-highlight-1: Measurement of differential cross-sections of tt production in the electron-muon channel with the full Run 2 data set

Speaker: Luca Martinelli (Sapienza Universita e INFN, Roma I (IT))

topXS_LHCTopWG.pdf

14:20 → 14:30 Discussion

14:30 → 14:50 ATLAS+CMS common MC simulation

Speaker: Reinhard Schwienhorst (Michigan State University (US))

2022-11-09 Common MC LHCtopWG.pdf

14:50 → 15:00 Discussion

15:00 → 15:30 Break

15:30 → 15:50 CMS-Highlight-2: Charge asymmetry in boosted tt events

Speaker: Titas Roy (University of Illinois at Chicago (US))

LH_TOP_WG.pdf

15:50 → 16:00 Discussion

16:00 → 16:20 ATLAS-highlight-2: charge asymmetries in tt, tt+gamma and tt+W production

Speaker: Carmen Diez Pardos (Universitaet Siegen (DE))

ttbarAsymmetries_LHCTopWGNov22.pdf

16:20 → 16:30 Discussion

16:30 → 16:50 Comparison of recent 4top results from ATLAS and CMS

Speakers: Quake Qin (University of Manchester (GB)), Vichayanun Wachirapusitanand (Chulalongkorn University (TH))

Four tops comparison LHCTopWG talk.pdf

16:50 → 17:00 Discussion

17:00 → 17:20 The 4-top-quark BSM potential: resonant and non-resonant opportunities

Speaker: Luc DARME

LHCTopWG_DARME.pdf

17:20 → 17:30 Discussion

17:30 → 17:50 Status and prospects on SM predictions for 4tops

Speaker: Manfred Kraus (Florida State University)

mkraus.pdf

17:50 → 18:00 Discussion

Thursday, 10 November

11:00 → 11:20 “Radiation and recoil effects in top quark decays in Pythia” uncertainty in the context of top quark measurements

Speaker: Prof. Peter Skands (Monash University (AU))

22-TopRecoilAndVincia.pdf

11:20 → 11:30 Discussion

11:30 → 11:50 Latest direct top-quark mass measurements from ATLAS

Speaker: Mr Javier Jimenez Pena (Max Planck Society (DE))

TopMassDirectMeasurementsLHCtopWG_Final.pdf

11:50 → 12:00 Discussion

12:00 → 14:00 Lunch Break

14:00 → 14:20 Latest results on colour reconnection in ATLAS and CMS

Speakers: Efe Yazgan (National Taiwan University (TW)), Shayma Wahdan (Bergische Universitaet Wuppertal (DE))

LHCTOPWG_10.2022.pdf

14:20 → 14:30 Discussion

14:30 → 14:50 Energy-peak based method to measure top quark mass via B-hadron decay lengths

Speaker: Roberto Franceschini (Rome 3 U.)

mtop B hadron decay lengths.pdf

14:50 → 15:00 Discussion

15:00 → 15:20 Determination of the top-quark on-shell mass via the scale-invariant perturbative relation to its MSbar mass (2209.10777 [hep-ph])

Speaker: Xu-Dong Huang

Topmass(2209.10777)_Huang.pdf

15:20 → 15:30 Discussion

15:30 → 16:00 Coffee break

16:00 → 16:20 NNLO study of top-quark mass renormalization scheme uncertainties in Higgs boson production (arXiv:2206.14667 [hep-ph])

Speaker: Javier Mazzitelli (Paul Scherrer Institut (CH))

top_uncertainties_mazzitelli.pdf

16:20 → 16:30 Discussion

16:30 → 16:50 Status of the Run 1 top-quark mass combination

Speaker: Steve Wimpenny (University of California Riverside (US))

LHCtopWG - November 2022.pdf

16:50 → 17:00 Discussion

Friday, 11 November

14:00 → 14:20 Precise predictions for t-channel single-top production at the LHC and FCC

Speaker: Chiara Signorile-Signorile (Karlsruhe Institute of Technology (KIT))

LHCtopWG_signorile.pdf

14:20 → 14:30 Discussion

14:30 → 14:50 Resonant top pair searches at the LHC: a window to electroweak phase transition

Speaker: Dorival Gonçalves (Oklahoma State University)

Dorival_LHC_Top_2022.pdf

14:50 → 15:00 Discussion

15:00 → 15:10 Mini-coffee break

15:10 → 15:30 Semileptonic Decays in Off-shell Top Quark Production with bb4l

Speaker: Tomas Jezo (WWU ITP)

slides.pdf

15:30 → 15:40 Discussion

15:40 → 16:00 Accessing CKM suppressed top decays at the LHC

Speaker: Manuel Szewc

lhc_top_wg_szewc.pdf

16:00 → 16:10 Discussion