2024 ATLAS-CMS Flavour Tagging Workshop

Name: 2024 ATLAS-CMS Flavour Tagging Workshop
Start: 2024-09-09T05:00:00+02:00
End: 2024-09-13T13:30:00+02:00
Location: No location set

9 Sept 2024, 05:00 → 13 Sept 2024, 13:30 Europe/Zurich

Grand Hotel Savoia, Via Arsenale Di Terra 5, Genoa, 16126, Italy

Dan Guest (Humboldt University of Berlin (DE)), Francesco Armando Di Bello (INFN e Universita Genova (IT)), Sebastian Wuchterl (CERN), Spandan Mondal (Brown University (US))

Description

Joint workshop to review the latest progress and plan the coming work in the context of jet flavour classification algorithms and their calibrations within the ATLAS and CMS collaborations.

This workshop is organised by Istituto Nazionale di Fisica Nucleare (INFN) - Sezione di Genova and by Dipartimento di Fisica, Università di Genova.

Contact

andrea.coccaro@ge.infn.it

Registration

Registration to the Workshop

Participants

130 View full list

64560712654

Francesco Armando Di Bello

Join via phone

Monday 9 September
- 08:20 → 14:00
  Plenary: Algorithms in ATLAS and CMS: resolved and boosted
  
  Conveners: Alexandre De Moor (Vrije Universiteit Brussel (BE)), Ming-Yan Lee (Rheinisch Westfaelische Tech. Hoch. (DE)), Nicole Michelle Hartman (TUM (DE)), Samuel Van Stroud (UCL)
  
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  Wednesday Venue
  - 09:00
    
    Welcome and introduction 30m
    
    Speaker: Francesco Armando Di Bello (INFN e Universita Genova (IT))
    
    2024-09-09_FTAG-WS-Genoa_Intro (1).pdf
  - 09:30
    
    Flavour Tagging in ATLAS and CMS: an overview 25m
    
    20+5
    
    Speaker: Fabrizio Parodi (Università degli Studi e INFN Genova (IT))
    
    FtagIntroWS24.pdf
  - 09:55
    
    Tracking and vertexing in ATLAS 20m
    
    Speaker: Jackson Carl Burzynski (Simon Fraser University (CA))
    
    ATLAS_CMS_FTAG_Workshop_2024.pdf
  - 10:15
    
    Tracking and vertexing in CMS 20m
    
    Speaker: Dr Marco Musich (Universita & INFN Pisa (IT))
    
    MM_Tracking_Vertexing_FTAG-1.pdf
  - 10:35
    
    Tracking and vertexing - discussion 15m
  - 11:00
    
    Coffee break 30m
  - 11:30
    
    FTAG algorithms in ATLAS 20m
    
    Speaker: Philipp Gadow (CERN)
    
    2024-09-09-FTAGWS-Algorithms-ATLAS.pdf
  - 11:50
    
    FTAG algorithms in CMS 20m
    
    Speaker: Alexandre De Moor (Vrije Universiteit Brussel (BE))
    
    Genova CMS-ATLAS final-2.pdf
  - 12:10
    
    Algorithms - discussion 15m
  - 12:25
    
    Boosted bb/cc tagging in ATLAS 20m
    
    Speaker: Jackson Barr (UCL)
    
    2024-09-09-FTAG-Workshop.pdf
  - 12:45
    
    Boosted bb/cc tagging in CMS 20m
    
    Speaker: Raffaele Angelo Gerosa (Universita & INFN, Milano-Bicocca (IT))
    
    RG_FTAG_Boosted_bb_cc.pdf
  - 13:05
    
    Boosted bb/cc tagging - discussion 15m
  - 13:20
    
    Boosted top/W/Z tagging in CMS 20m
    
    15+5
    
    Speaker: Fabio Iemmi (Chinese Academy of Sciences (CN))
    
    ATLAS_CMS_FTAG_workshop.pdf
- 14:00 → 15:00
  
  Lunch break 1h
  
  Lunch at http://www.mercatodelcarmine.it/
- 19:20 → 21:20
  
  Social event: Welcome Drink @ Banano Tsunami
  
  See the venue website
Tuesday 10 September
- 09:00 → 13:31
  Plenary: Calibrations in ATLAS and CMS: resolved and boosted
  
  Conveners: Brian Moser (University of Oxford (GB)), Jan van der Linden (Ghent University (BE)), Svenja Diekmann (Rheinisch Westfaelische Tech. Hoch. (DE)), Valentina 🐧 Vecchio (University of Manchester)
  
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  Wednesday Venue
  - 09:00
    
    b-jet calibration in ATLAS 15m
    
    Speaker: Zhibo Wu (Centre National de la Recherche Scientifique (FR))
    
    BTaggingCalibration20240910v2.pdf
  - 09:15
    
    b-jet calibration in CMS 15m
    
    Speaker: Gouranga Kole (National Taiwan University (TW))
    
    B_tagging_sf_final_Gouranga_CMS.pdf
  - 09:30
    
    b-jet calibration - discussion 15m
  - 09:45
    
    Light- and c-jet calibration in CMS 15m
    
    Speaker: Agostino De Iorio (National Taiwan University (TW))
    
    FTAG_workshop_ctag_calibration_fixedWP_CMS.pdf
  - 10:00
    
    c-jet calibration in ATLAS 10m
    
    Speaker: Andrew Mehta (University of Liverpool (GB))
    
    mehta.pdf
  - 10:10
    
    Light-jet calibration in ATLAS 10m
    
    Speaker: Martino Tanasini (Stony Brook University (US))
    
    Calibratig Small-R light-flavour jets in ATLAS-2.pdf
  - 10:20
    
    Light- and c-jet calibration - discussion 23m
  - 10:43
    
    Continuous calibration in ATLAS 15m
    
    Speaker: Malte Algren (Universite de Geneve (CH))
    
    b_jet_calibration_using_optimal_transport_atlas_cms_WS.pdf
  - 10:58
    
    Coffee break 20m
  - 11:18
    
    Continuous calibration in CMS 15m
    
    Speaker: Svenja Diekmann (Rheinisch Westfaelische Tech. Hoch. (DE))
    
    240910-FTAG24-ShapeCalib-Diekmann.pdf
  - 11:33
    
    Continuous calibration - discussion 28m
  - 12:01
    
    Boosted bb/cc calibration in ATLAS 15m
    
    Speaker: Daariimaa Battulga (Humboldt University of Berlin (DE))
    
    Boosted_GN2Xv01_tagger_bb_calib_ATLAS_DBattulga_10092024-1.pdf
  - 12:16
    
    Boosted bb/cc calibration in CMS 15m
    
    Speaker: Matteo Marchegiani (ETH Zurich (CH))
    
    24.09.10_FTAG_Boosted_bb_cc_jet_calibration_CMS_MM.pdf
  - 12:31
    
    Boosted bb/cc calibration - discussion 10m
  - 12:41
    
    Smoothing, MC/MC, eigenvectors in ATLAS 15m
    
    Speaker: Tom Dingley (University of Oxford (GB))
    
    FTAGWS_Augmentation.pdf
  - 12:56
    
    Smoothing, combination and extrapolation of b-tagging SFs in CMS 15m
    
    Speaker: Luca Scodellaro (Instituto de Física de Cantabria)
    
    BTagWorkshop_240910_Combinations Final.pdf
  - 13:11
    
    Smoothing, etc - discussion 15m
- 13:30 → 15:00
  
  Lunch break 1h 30m
  
  Lunch at http://www.mercatodelcarmine.it/
Wednesday 11 September
- 09:00 → 13:00
  Plenary: Invited talks: machine learning, modelling (theory), flash talk (open submission)
  
  Conveners: Andrea Coccaro (INFN Genova (IT)), Carlo Schiavi (INFN e Universita Genova (IT))
  
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  Wednesday Venue
  - 09:00
    
    Machine learning for flavour tagging - overview and future prospects 20m
    
    Speaker: Huilin Qu (CERN)
    
    FTAG_ML_20240911_H_Qu.pdf
  - 09:20
    
    Theory talk on b- and c-jets labelling 20m
    
    Speaker: Prof. Simone Marzani (Università di Genova and INFN Sezione di Genova)
    
    marzani-atlas-cms.pdf
  - 09:40
    
    flavor-tagging at LHCb 20m
    
    Speaker: Quentin Führing (Technische Universitaet Dortmund (DE), University of Cambridge (UK))
    
    qfuehring_ft_lhcb.pdf
  - 10:00
    
    b-tagging at FCC 20m
    
    Speaker: Dr Andrea Sciandra (Brookhaven National Laboratory (US))
    
    Sciandra_FCC_Genova_ATLAS_CMS_FTAG_WS.pdf
  - 10:20
    
    Measuring and modelling fragmentation functions at LHC 20m
    
    Speaker: Miha Muskinja (Jozef Stefan Institute (SI))
    
    miham_9_11_2024_FTAG_Genova.pdf
  - 10:40
    
    FTAG usage in physics analyses: an overview in ATLAS and CMS 20m
    
    Speaker: Giacinto Piacquadio (State University of New York (US))
    
    Sep11_FlavorTagginginATLASandCMSAnalyses.pdf
  - 11:00
    
    Coffee break 30m
  - 11:30
    
    flash talk: Maskformer for Vertex Reconstruction 15m
    
    Speakers: Nikita Ivvan Pond (UCL), Samuel Van Stroud (UCL)
    
    2024-09-08-ftagws-maskformer.pdf
  - 11:45
    
    flash talk: Investigating the impact of 4D Tracking in ATLAS Beyond Run 4 15m
    
    Speaker: Lorenzo Santi (Sapienza Universita e INFN, Roma I (IT))
    
    240911 - FTagTiming.pdf
  - 12:00
    
    flash talk: Finetuning foundation models for joint analysis optimization 15m
    
    Speaker: Matthias Vigl (Technische Universitat Munchen (DE))
    
    FM_FTAG_Genova.pdf
  - 12:15
    
    Big Data Democracy 15m
    
    Speaker: Claudio Muselli (INFN-Milan Section/University of Milan)
    
    BigDataDemocracy.pdf
    
    BigDataDemocracy.pptx
- 13:00 → 21:00
  
  Free afternoon
- 15:00 → 17:00
  
  Visit to Basilica di Carignano
Thursday 12 September
- 09:00 → 13:00
  Plenary: b-jet triggers and FTAG software
  
  Conveners: BinBin Dong (Michigan State University (US)), Bo Liu (Chinese Academy of Sciences (CN)), Jieun Choi (Hanyang University (KR)), Liaoshan Shi (UCL (GB)), Ming-Yan Lee (Rheinisch Westfaelische Tech. Hoch. (DE))
  
  slido link
  
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  Wednesday Venue
  - 09:00
    
    b-jet triggers in ATLAS 20m
    
    Speaker: Stefano Franchellucci (Universite de Geneve (CH))
    
    240912_ftagWS_bjetTrig.pdf
  - 09:20
    
    b-jet triggers in CMS 20m
    
    Speaker: Jieun Choi (Hanyang University (KR))
    
    FTAG2024_bjetTrigger_CMSpdf.pdf
  - 09:40
    
    Parking Trigger Strategy in CMS 20m
    
    Speaker: Marko Stamenkovic (Brown University (US))
    
    20240902_ATLAS_CMS_FTAG_Workshop.pdf
  - 10:00
    
    Object tagging and machine learning at the CMS L1 Trigger 20m
    
    Speaker: Sioni Paris Summers (CERN)
    
    sps_ftag_mlatl1.pdf
  - 10:20
    
    Trigger - discussion 15m
  - 10:35
    
    Flavor Tagging Efficiency Parametrisations with Graph Neural Networks in ATLAS 20m
    
    15+5
    Classifying the flavour of hadronic jets, a process known as jet flavour-tagging, is crucial for analyses targeting final states featuring b or c-hadrons. Many of these analyses rely on Monte Carlo simulated samples to model the signal and background processes: in such cases, when stringent jet- flavour-tagging selections are applied to the candidate events, modelling the simulated processes can be challenging, especially when the selection discards a significant portion of the simulated statistic. In such cases, techniques that weight the events with their probabilities of being selected, rather than accepting or discarding them straightaway, enable a better usage of the simulated data. The precision of these techniques relies on an accurate parametrization of the dependency of the jet flavour-tagging efficiency function over the conditions under which the jets are produced. In this talk, an innovative technique to parameterize this function using GNNs is described, along with its implementation in the context of the measurement of the (W/Z)H, H → bb/cc process, which marks its inaugural application.
    
    Speaker: Martino Tanasini (Stony Brook University (US))
    
    Flavour-tagging efficiency parametrisation with GNNs in ATLAS-5.pdf
  - 11:00
    
    Coffee Break 30m
  - 11:30
    
    FTAG ML Pipeline in ATLAS 15m
    
    Speaker: Dmitrii Kobylianskii (Weizmann Institute of Science (IL))
    
    atlas_ml_pipeline.pdf
  - 11:45
    
    FTAG ML Pipeline & training framework in CMS 15m
    
    Speaker: Alexander Jung (RWTH Aachen University (DE))
    
    slides.pdf
  - 12:00
    
    ML Pipeline - discussion 15m
  - 12:15
    
    FTAG from Recommendation to User in ATLAS 15m
    
    Speaker: Zhuoran Feng (Nikhef National institute for subatomic physics (NL))
    
    FromRecommedationToUser-ATLAS.pdf
  - 12:30
    
    FTAG from Recommendation to User in CMS 15m
    
    Speaker: Jan van der Linden (Ghent University (BE))
    
    FTAG-2024-SFtoUsers-JvdL-final_v10_final_final.pdf
  - 12:45
    
    Recommendation - discussion 15m
- 13:00 → 15:00
  
  Lunch break 2h
  
  Lunch at http://www.mercatodelcarmine.it/
- 19:30 → 21:30
  
  Social event: Dinner @ Bistrot Palazzo Rosso
  
  See the venue website
Friday 13 September
- 09:00 → 13:00
  Plenary: Summary and close-out
  
  slido link
  
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  Wednesday Venue
  - 09:00
    
    Tau identification in CMS 20m
    
    Speaker: Paola Mastrapasqua (Universite Catholique de Louvain (UCL) (BE))
    
    TauTalk_FlavourTaggingWorkshop_Pmastrapasqua.pdf
  - 09:25
    
    Tau identification in ATLAS 20m
    
    Speaker: Michaela Mlynarikova (CERN)
    
    ATLAS_tau_ID.pdf
  - 09:50
    
    Coffee break 20m
  - 10:10
    
    ATLAS Summary 25m
    
    Speaker: Spandan Mondal (Brown University (US))
    
    ATLAS-FTAG-Summary.pdf
  - 10:35
    
    CMS Summary 25m
    
    Speaker: Francesco Armando Di Bello (INFN e Universita Genova (IT))
    
    CMS_from_ATLAS (1).pdf
  - 11:00
    
    Outlook: Open questions and future of FTAG 30m
    
    Speaker: Carlo Schiavi (INFN e Universita Genova (IT))
    
    2024-09-13-FTagQuestions.pdf
  - 11:30
    
    Closing 10m

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2024 ATLAS-CMS Flavour Tagging Workshop