PDF4LHC with PHYSTAT

Name: PDF4LHC with PHYSTAT
Start: 2025-10-06T08:45:00+02:00
End: 2025-10-07T18:40:00+02:00
Location: CERN

6 Oct 2025, 08:45 → 7 Oct 2025, 18:40 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110

Show room on map

Amanda Sarkar (University of Oxford (GB))

Description

This meeting of the PDF4LHC will include a session jointly with the PHYSTAT forum in addition to the usual contributions from the experiments and PDF providers. Agenda is currently provisional

Contact

amanda.cooper-sarkar@physics.ox.ac.uk

Participants

43 View full list

64620743241

Amanda Sarkar

75778959

Join via phone

Monday 6 October
- Mon 6 Oct
- Tue 7 Oct
- PHYSTAT session: PHYSTAT for PDFs
  
  PDF4LHC joint with PHYSTAT empasis on uncertainties on PDFs
  - 1
    
    Welcome
    
    Speakers: Lydia Brenner (Nikhef National institute for subatomic physics (NL)), Olaf Behnke (Deutsches Elektronen-Synchrotron (DE)), Olaf Behnke (DESY)
    
    PHYSTAT-PDF4LHC-251006_opening.pdf
  - 2
    
    PDF fitting overview
    
    Speaker: Dr Lucian Alexander Harland-Lang (University College London)
    
    lhl_PDF4LHC_summary_comp.pdf
  - 3
    
    Session 1: Uncertainty quantification in practice, a dialogue between Pavel Nadolsky and Josh Bendavid: perspectives on the PDF tolerance from the vantage points of PDF fitters and experimentalists working on EW precision measurements.
    
    Speakers: Josh Bendavid (CERN), Prof. Pavel Nadolsky (Michigan State University)
    
    nadolsky_phystat.pdf
    
    pdf4lhcPhystatExp-Oct6-2025.pdf
  - 4
    
    Session 1: Uncertainty quantification in practice, response from statisticians and audience
    
    Speaker: Lydia Brenner (Nikhef National institute for subatomic physics (NL))
  - 11:00
    
    Coffee
  - 5
    
    Session 2: Detecting an treating inconsistent data, a dialogue between Mark Constantini and Sofia Olhede
    
    Speakers: Mark Costantini, sofia olhede
    
    cern_talk_inconsistencies_costantini.pdf
    
    main-olhede.pdf
  - 6
    
    Session 2: Detecting an treating inconsistent data, response from audience
    
    Speaker: Robert Samuel Thorne (University College London (UK))
  - 12:40
    
    Lunch
- PDF4LHC meeting: PHYSTAT for PDFs
  
  vandyk.pdf
  - 7
    
    Session 3: PDF parametrisation and model uncertainty, a dialogue between Aurore Courtoy and Chad Schafer
    
    Speakers: Aurore Courtoy, Aurore Courtoy (Instituto de Física, UNAM), Chad Schafer
    
    PDF4LHC_phystat_25_AC.pdf
    
    PDF_Slides_Schafer.pdf
  - 8
    
    Session 3: PDF parametrisation and model uncertainty, response from audience
    
    Speaker: Amanda Sarkar (University of Oxford (GB))
  - 9
    
    Highlight talk: A Theory of almost Everything--- Statistically Speaking
    
    Speaker: Prof. Xiao-Li Meng (Harvard University)
    
    CERNddp.pdf
  - 15:55
    
    Tea/Coffee
  - 10
    
    Session 4: Fit complexity and nuisance parameters, a dialogue between Bogdan Malaescu and David van Dyk
    
    Speakers: Bogdan Malaescu (LPNHE-Paris CNRS/IN2P3 (FR)), David van Dyk
    
    NPs_Uncertainties_Correlations__Malaescu.pdf
    
    vandyk.pdf
  - 11
    
    Session 4: Fit complexity and nuisance parameters, response from audience
    
    Speaker: Olaf Behnke (Deutsches Elektronen-Synchrotron (DE))
  - 12
    
    Wrap-up
    
    Speakers: Prof. Pavel Nadolsky (Michigan State University), Robert Samuel Thorne (University College London (UK))
Tuesday 7 October
- Mon 6 Oct
- Tue 7 Oct
- 13
  
  News from ATLAS
  
  Speaker: Eimear Isobel Conroy (University of Oxford (GB))
  
  PDF4LHC25_Talk.pdf
- 14
  
  News from LHCb
  
  Speaker: Jiuzhao Li (Central China Normal University CCNU (CN))
  
  News_LHCb.pdf
- 15
  
  News from CMS
  
  Speaker: Daniel Savoiu (Hamburg University (DE))
  
  2025-10-07_dsavoiu_pdf4lhc_news_cms.pdf
- 16
  
  ABMP update
  
  Speaker: Maria Vittoria Garzelli (DESY)
  
  sempdf25.pdf
- 17
  
  A linear PDF model for Bayesian Inference
  
  Speaker: Mark Costantini
  
  cern_talk_linear_model_costantini.pdf
- 10:45
  
  Coffee
- 18
  
  MSHT update
  
  Speaker: Dr Lucian Alexander Harland-Lang (University College London)
  
  lhl_PDF4LHC_mshtcomp.pdf
- 19
  
  CT update
  
  Speaker: Joey Huston (Michigan State University (US))
  
  CT_update_PDF4LHC_oct7_25.pdf
- 20
  
  NNPDF update
  
  Speaker: Tommaso Giani
  
  pdf4lhc25_nnpdf_giani.pdf
- 21
  
  Colibri: a general open source tool for Bayesian PDF fits (and more)
  
  Speaker: Valentina Schutze
  
  Colibri for pdf4lhc.pdf
- 22
  
  PDF Uncertainties: the Markov Chain Monte-Carlo approach
  
  Speaker: Peter Risse (Southern Methodist University)
  
  Risse_PDF4LHC_2025.pdf
- 13:00
  
  Lunch
- 23
  
  Precision measurements of the EW mixing angle
  
  Speaker: Hyon San Seo (University of Rochester (US))
  
  251007PDF4LHC.pdf
- 24
  
  N3LO studies in xFitter
  
  Speaker: Dr Francesco Giuli (INFN e Universita Roma Tor Vergata (IT))
  
  FGiuli_PDF4LHC.pdf
- 25
  
  Hoppet v2: Fast and accurate parton evolution in the LHC precision era
  
  Speaker: Dr Alexander Karlberg (CERN)
  
  07102025PDF4LHC.pdf
- 26
  
  Two mass 3-loop corrections to DIS: structure functions and VFNS
  
  Speaker: Kay Schönwald
  
  KS-PDF4LHC-2025.pdf
- 27
  
  MSHT uncertainties
  
  Speaker: Robert Samuel Thorne (University College London (UK))
  
  PDF4LHC25.pdf
- 15:45
  
  Tea/Coffee
- 28
  
  CT uncertainties
  
  Speaker: Kirtimaan Ajaykant Mohan
  
  k_mohan_uq_pdf4lhc_Oct_2025.pdf
- 29
  
  Higher Twists
  
  Speaker: Richard Ball
  
  PDF4LHC25 RDB.pdf
- 30
  
  QED-enhanced PDF implications for the Higgs sector
  
  Speaker: Max Ponce Chavez
  
  MaxPDF4LHC.pdf
- 31
  
  JAM update
  
  Speaker: Trey Anderson (William and Mary)
  
  Anderson_PDF4LHC25.pdf
- 32
  
  nCTEQ25
  
  Speaker: Michael Klasen
  
  klasen.pdf