14th International Workshop on Top Quark Physics (TOP2021)

13 Sept 2021, 14:00 → 17 Sept 2021, 18:45 Europe/Paris

Welcome to the 14th International Workshop on Top Quark Physics (TOP2021)

The 14th International Workshop on Top Quark Physics (TOP 2021) will be held online, via zoom, from September 13 to 17, 2021, starting on Monday at 14h CERN time (8am EDT).

TOP 2021 brings together experimentalists and theorists to present and discuss the latest developments in top-quark physics. This year's meeting will be an on-line conference hosted by Michigan State University and other North American institutions. The program includes a mini-workshop entitled "Top Physics @ Future Colliders".

Young scientists are especially encouraged to participate, and there will be a poster session as well as a block of short plenary talks in the "Young Scientist Forum'',  allowing them to present their work.  There is no registration fee.

Please note that all times correspond to CERN time. The conference will be held on Zoom; information about how to join can be found on the left for registered users. Speakers should upload their slides before their session starts, ideally one day in advance. The zoom information is shown in the bar on the left.

There is a slack channel for chats with other conference participants and with the organizers, you can join it at this link.

First Bulletin

Latex+Bibtex template for conference proceedings

Top2021 First Bulletin.pdf

Monday, 13 September

1 Introduction

Speakers: Malgorzata Maria Worek (Rheinisch Westfaelische Tech. Hoch. (DE)), Reinhard Schwienhorst (Michigan State University (US))

Organization.pdf

Welcome.pdf

2 Keynote talk

Speakers: Andrea Wulzer, Andrea Wulzer (CERN and EPFL)

talk_wulzer.pdf

3 LHC machine status

Speaker: Gianluigi Arduini (CERN)

LHCMachineStatus@TOP2021_13092021_13092021.pdf

LHCMachineStatus@TOP2021_13092021_13092021.pptx

4 Inclusive & differential cross-section measurements of single top-quark production with ATLAS and CMS

ATLAS+CMS, CMS speaker, ATLAS helper

Speaker: Victor Rodriguez Bouza (Universidad de Oviedo (ES))

2021_09_TOP2021_singletopmeas.pdf

5 Highlights in single top quark physics

Speaker: John Campbell

Top2021-singletop.pdf

6 Inclusive & differential cross-section measurements of top-quark-pair production with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

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

TOP2021_Martinelli.pdf

17:00 Coffee Break

7 Flavored jets in top physics and beyond

Speaker: Michal Wiktor Czakon (Rheinisch Westfaelische Tech. Hoch. (DE))

talk.pdf

8 Top quark angular correlations at LHC with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

Speakers: James Howarth (University of Manchester-Unknown-Unknown), James William Howarth (University of Glasgow (GB))

ATLAS_CMS_TOP2021_AngularCorrelations_15_09_21.pdf

9 SM parameters from top quark measurements at LHC with ATLAS and CMS

ATLAS+CMS, CMS speaker, ATLAS helper

Speaker: Sebastian Wuchterl (Deutsches Elektronen-Synchrotron (DE))

SW_TopProperties.pdf

Tuesday, 14 September

10 Top Quark Modelling and Tuning in ATLAS and CMS

ATLAS+CMS, CMS speaker, ATLAS helper

Speaker: Giulia Negro (Purdue University (US))

modelling_TOP2021_Negro.pdf

11 NNLO event generation for top-quark pair production

Speakers: Giulia Zanderighi (Max-Planck-Institut fur Physik (DE)), Giulia Zanderighi (CERN)

Top2021.pdf

12 Associated top quark production: pp → t(t)+X where X = Z, W, γ with ATLAS and CMS

ATLAS+CMS, CMS speaker, ATLAS helper

Speaker: Joscha Knolle (Ghent University (BE))

JK_210914_ttV_v4.pdf

15:30 Coffee Break

13 Associated top quark production: pp → t(t)+X where X = cc, bb, j, jj, …, in ATLAS and CMS

ATLAS+CMS, CMS speaker, ATLAS helper

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

20210914_TTbarPlusX_Top2021.pdf

14 ttbb at the LHC: On the size of corrections and bottom-jet definitions

Speaker: Manfred Kraus (Florida State University)

MKraus.pdf

15 t(t) + H and 4tops cross section measurements with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

Speaker: Timothee Theveneaux-Pelzer (Humboldt University of Berlin (DE))

Top2021_ttH4tops_Theveneaux-Pelzer.pdf

Wednesday, 15 September

16 10. Cross Sections for ttH production with the Top Quark MSbar Mass

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

Poster

Zoom room

17 11. Differential ttbar cross-section measurement using boosted top quarks with 139/fb of ATLAS data

Speaker: Petr Jacka (Czech Academy of Sciences (CZ))

Poster

Zoom room

18 12. Search for W'->tb decays in the fully hadronic final with the ATLAS experiment

Speaker: Kuan-Yu Lin (Michigan State University (US))

Poster

PosterHighlights.mp4

Zoom room (passcode: 2021)

19 13. Search for heavy resonances in four-top-quark final states with the ATLAS detector

Speaker: Alicia Wongel (Deutsches Elektronen-Synchrotron (DE))

Poster

Zoom room (Wednesday and Thursday)

20 14. Studies of the Powheg-bb4l generator including non-resonant and off-shell effects in comparison with ATLAS data and other Monte Carlo generator predictions

Speaker: Dimbiniaina Rafanoharana (Albert Ludwigs Universitaet Freiburg (DE))

Poster

Zoom room

21 15. Measurements of Top-Higgs Yukawa Interaction Using the Higgs to Diphoton Decay Channel

Speaker: Alex Zeng Wang (University of Wisconsin Madison (US))

Poster

Zoom room

22 16. Measurement of spin correlation density production matrix in dilepton decays at CMS

Speaker: Jason Thieman (Purdue University (US))

Poster

Zoom room

23 17. Top quarks as a probe to quantum information

Speakers: Andrew Wildridge (Purdue University (US)), Souvik Das (Purdue University (US))

Poster

Zoom room

24 2. NLO QCD off-shell results for ttW

Speaker: Jasmina Nasufi (RWTH-Aachen)

Poster

Zoom room

25 3. NLO QCD corrections for off-shell ttbb

Speaker: Michele Lupattelli

Poster

Zoom room

26 4. Top and Higgs data interplay in the SMEFT framework

Speaker: Luca Mantani (UCLouvain)

Poster

Zoom room (only Wednesday)

27 5. Two-loop master integrals for the single top production associated with W boson

Speaker: Mingming Long (University of Science and Technology of China)

Poster

Zoom room

28 6. Theory input for ttbar + jet experimental analyses at the LHC

Speaker: Katharina Voss (Deutsches Elektronen-Synchrotron DESY)

Poster

Zoom room (Wednesday and Thursday)

29 7. Collider study of the tthh channel

Speaker: Lingfeng Li (HKUST)

Poster

Zoom room

30 8. Boosted semi leptonic top tagging with tau

Speakers: Amandip De (Indian Institute of science (IN)), Amandip De (Indian Institute of Science)

Poster

Zoom room

31 9. Top quark electro-weak couplings after LHC Run 2

Speaker: Maria Moreno Llacer (Univ. of Valencia and CSIC (ES))

Poster

Zoom room (Wednesday and Thursday)

32 Poster session

https://indico.cern.ch/event/1018454/contributions/4339334/
The poster session will be organized as separate Zoom rooms for individual presenters. Conference participants can visit as many poster rooms as you like during the session by moving from Zoom room to Zoom room, similarly to a normal poster session. We will award a prize for the best poster.

We expect that posters are in the traditional poster format, either horizontal or vertical. However, if you have a preferred format for you poster, please email the conference organizers.

Speakers: Alex Zeng Wang (University of Wisconsin Madison (US)), Alicia Wongel (Deutsches Elektronen-Synchrotron (DE)), Amandip De (Indian Institute of science (IN)), Amandip De (Indian Institute of Science), Andrej Saibel (Deutsches Elektronen-Synchrotron (DE)), Andrew Wildridge (Purdue University (US)), Dimbiniaina Rafanoharana (Albert Ludwigs Universitaet Freiburg (DE)), Dimbiniaina Soanasolo RAFANOHARANA (University of Witwatersrand), Jasmina Nasufi (RWTH-Aachen), Jason Thieman (Purdue University (US)), Katharina Voss (Deutsches Elektronen-Synchrotron DESY), Katharina Voss (Universitaet Siegen (DE)), Kuan-Yu Lin (Michigan State University (US)), Lingfeng Li (HKUST), Luca Mantani (UCLouvain), Maria Moreno Llacer (Univ. of Valencia and CSIC (ES)), Michele Lupattelli, Mingming Long (University of Science and Technology of China), Petr Jacka (Czech Academy of Sciences (CZ)), Souvik Das (Purdue University (US))

33 Precision measurements in boosted top quark production with ATLAS

ATLAS speaker

Speakers: Johannes Erdmann (TU Dortmund), Johannes Erdmann

TOP2021.pdf

Young Scientist Forum: YSF 1

34 Measurements of the inclusive production cross section of a top-quark-antiquark pair in association with a Z boson at sqrt(s) = 13 TeV with the ATLAS detector

YSF talk ATLAS 1

Speaker: Laurynas Mince (University of Glasgow (GB))

LM_top2021_v2.pdf

35 Inclusive and differential cross-sections measurements in the single top tW e-mu channel with CMS

Speaker: Alejandro Soto Rodriguez (Universidad de Oviedo (ES))

TOP2021_AlejandroSoto.pdf

36 The impact of top-quark modeling on the exclusion limits in tt+DM searches at the LHC

Speaker: Jonathan Hermann (RWTH Aachen)

TOP2021.pdf

37 Measurements of the differential production cross sections of a top-quark-antiquark pair in association with a Z boson at sqrt(s) = 13 TeV with the ATLAS detector

YSF talk ATLAS 2

Speaker: Dominik Babal (Comenius University (SK))

top2021_Babal_v3.pdf

38 Measurement of tW production in lepton jets channel with CMS

Speaker: Duncan Leggat (Chinese Academy of Sciences (CN))

2021-09-15_leggat_top2021_tW_ljets.pdf

39 Non-factorizable two-loop contribution to t-channel single-top production

Speaker: Christian Broennum-Hansen (University of Edinburgh)

singletop_nonfactorisable.pdf

16:30 Coffee Break

40 Interpreting top quark LHC measurements in the standard model effective field theory

Speaker: Ken Mimasu (King's College London)

Mimasu_TOP2021.pdf

41 Rare and Anomalous couplings in top quark production within the SM and beyond with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

Speaker: Thomas James Stevenson (University of Sussex (GB))

20210915_TOP2021_RareTop.pdf

42 Theory issues in SMEFT fits

Speaker: Ilaria Brivio (University of Heidelberg)

slides_TOP21.pdf

43 Top quarks at the HL-LHC and Future

ATLAS+CMS, CMS speaker, ATLAS helper

Speaker: Jan Kieseler (CERN)

20210915_kieseler.pdf

Thursday, 16 September

44 Poster session redux

Posters are at https://indico.cern.ch/event/1018454/contributions/4339334/

Posters

Theory workshop: Top-quark physics @ Future colliders: Top physics @ Future colliders

Convener: Andrea Wulzer (CERN and EPFL)

45 Top-quark couplings from Higgs factories to multi-tev lepton colliders

Speaker: Gauthier Durieux (CERN)

durieux-top-16sep21.pdf

46 BSM top-related/inspired physics and future multi-TeV colliders

Speaker: Javier Serra Mari (CERN)

JSerra_TOP2021.pdf

47 Challenges for top tagging and reconstruction at future colliders

Speaker: Michele Selvaggi (CERN)

selvaggi_top2021.pdf

48 Precision top-quark physics at the threshold in e+e- colliders

Speaker: Andre Hoang (University of Vienna)

Hoang-Top-Threshold.pdf

49 SM HL-LHC end-run opportunities for top-quark physics

Speaker: Roberto Franceschini (Rome 3 U.)

SM HL-LHC end-run opportunities for top-quark physics.pdf

16:55 Coffee Break

50 New physics with top quarks: from supersymmetry to exotic final states with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

Speaker: Marija Marjanovic (University of Oklahoma (US))

NewPhysicsWithTops_v1.pdf

51 Testing the EFT paradigm with top quark final states in pp collisions at LHC with ATLAS and CMS

Theory + ATLAS + CMS, CMS Speaker, ATLAS helper

Speaker: Dennis Schwarz (Austrian Academy of Sciences (AT))

TOP2021.pdf

52 Poster session redux 2

Posters are at https://indico.cern.ch/event/1018454/contributions/4339334/

Posters

Friday, 17 September

53 Inclusive & differential tt𝛾 measurement in the dilepton channel with CMS

CMS speaker

Speaker: Gianny Mestdach (Ghent University (BE))

ttg TOP 2021 joker talk.pdf

Young Scientist Forum: YSF 2

54 Towards a precise interpretation of the top quark mass parameter in ATLAS Monte Carlo samples

YSF talk ATLAS 3

Speaker: Javier Alberto Aparisi Pozo (Univ. of Valencia and CSIC (ES))

JA_BoostedMass_TOP2021.pdf

55 Inclusive ttbar production cross section at sqrt(s) = 5.02 TeV with CMS

Speaker: Carlos Vico Villalba (Universidad de Oviedo (ES))

top2021_CarlosVico_ttbar5TeV.pdf

56 Top-Pair Events with B-hadrons at the LHC

Speaker: Terry Generet (RWTH Aachen University)

TOP2021Generet.pdf

57 Search for the single production of vector-like top quarks in the decay T->Ht or T->Zt with the ATLAS detector

YSF talk ATLAS 3

Speaker: Carlos Josue Buxo Vazquez (Michigan State University (US))

Buxo_Vazquez_TOP2021.pdf

58 Measurement of the shape of the b quark fragmentation function using charmed mesons produced inside b jets from ttbar decays with CMS

Speaker: Brent Yates (Ohio State University (US))

byates_top21-9-17-21_v4.pdf

59 Single top quark production in association with a WZ pair at the LHC in the SMEFT at NLO in QCD

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

tWZ_NLO_EL_FAHAM_TOP2021.pdf

60 Machine learning for top quark physics at the edge in LHC pp collisions with ATLAS and CMS

ATLAS+CMS, ATLAS speaker, CMS helper

Speakers: Clara Nellist (Radboud University Nijmegen and NIKHEF (NL)), Clara Nellist (Nikhef National institute for subatomic physics (NL))

2021-09-17_TOP2021_CNellist.pdf

61 Lepton universality in beauty-quark decay and top-quark physics

Speaker: David Marzocca (INFN Trieste)

B anomalies and top.pdf

16:30 Workshop poster and Coffee Break

62 Experimental summary

Speaker: Maria Aldaya Martin (DESY)

experimental_summary_top2021.pdf

63 Theory summary

Speaker: Doreen Wackeroth (SUNY Buffalo)

Top2021_TH_summary.pdf

64 Announcement of Poster winner

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

Top2021 Poster Award Certificate.pdf

65 Announcement of Top2022

Speaker: Ben Pecjak (IPPP Durham)

Top2022_announcement.pdf