xFitter External meeting

2 May 2023, 10:00 → 5 May 2023, 15:00 Europe/Zurich

40/S2-C01 - Salle Curie (CERN)

Alexander Glazov (Deutsches Elektronen-Synchrotron (DE)), Francesco Giuli (CERN), Oleksandr Zenaiev (Hamburg University), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE)), Stefano Camarda (CERN)

For those at CERN we will meet:

 

- on Tuesday (morning and afternoon) and Thursday (afternoon only) in 4/3-004 (TH discussion room)

- all the other sessions will take place in 40/S2-C01 (Salle Curie)

Tuesday 2 May

11:00 → 12:30 Session: Where do we stand with the current release?

11:00 Opening remarks

Speaker: Dr Francesco Giuli (CERN)

xFitterExternal_020523.pdf

11:10 Current xFitter version

Speaker: Alexander Glazov (Deutsches Elektronen-Synchrotron (DE))

xFitter CERN.pdf

11:40 Brainstorming

Speakers: Alexander Glazov (Deutsches Elektronen-Synchrotron (DE)), Dr Francesco Giuli (CERN), Oleksandr Zenaiev (Hamburg University), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE))

12:30 → 14:00 Lunch

14:00 → 15:30 Session: Where do we want to go with future releases?

14:00 xFitter usage in the SURGE and HEFTY collaborations

Speaker: Prof. Fred Olness (Southern Methodist University (US))

xFitter2023_olness.pdf

14:30 xFitter usage at the EIC

Speaker: Dr TIMOTHY J HOBBS (Argonne National Laboratory)

xFitter23_Hobbs_Indico.pdf

15:30 → 16:00 Coffee break

16:00 → 17:30 Session: Where do we want to go with future releases?

16:00 New ATLAS measurements sensitive to PDFs

Speaker: Amanda Sarkar (University of Oxford (GB))

xFitter2023.pdf

16:30 New CMS measurements sensitive to PDFs and feedback from the LHC EW WG

Speaker: Simone Amoroso (Deutsches Elektronen-Synchrotron (DE))

Amoroso-xFitter-CMS.pdf

17:00 Brainstorming on possible xFitter analyses with EIC data

Wednesday 3 May

09:30 → 10:30 Session 4: Meson PDFs and FFs

09:30 A model for pion collinear parton distribution function and form factor

Speaker: SIMONE Venturini (University of Pavia)

Presentazione_xFitter_2023.pdf

10:00 Kaon PDF/FFs

Speaker: Hamed Abdolmaleki

xFitter_talk_FFs_Kaon_2023_ipm.pdf

10:30 → 11:00 Coffee break

11:00 → 12:30 Debug and code developments

11:00 A data-driven test of a quantum-statistics PDF parametrisation

Speakers: Federico Silvetti (INFN - National Institute for Nuclear Physics), Marco Bonvini (INFN, Rome 1 Unit)

QSPDF.pdf

11:30 Hesse vs Iterate error bands

Speakers: Alexander Glazov (Deutsches Elektronen-Synchrotron (DE)), Dr Francesco Giuli (CERN)

Hesse_VS_Pumplin.pdf

hf_symband.pdf

12:30 → 14:00 Lunch

14:00 → 15:30 Session 3: Ongoing and future projects with xFitter

14:00 AFB and high-x PDF behaviour

Speaker: Dr Juri Fiaschi (University of Liverpool)

xFitter_workshop_JuriFiaschi.pdf

14:30 Exploring SMEFT couplings using Forward-Backward Asymmetry

Speaker: Oleksandr Zenaiev (Hamburg University)

Zenaiev-xfitter-20230503.pdf

15:00 SMEFT studies with EIC and LHeC DIS pseudo data

Speaker: Chiara Bissolotti (Argonne National Laboratory)

2023-xFitterMeeting-bissolotti.pdf

15:30 → 16:00 Coffee break

16:00 → 17:30 Session 3: Ongoing and future projects with xFitter

16:00 The L2 sensitivity paper

Speakers: Joey Huston (Michigan State University (US)), Prof. Pavel Nadolsky (Southern Methodist University)

huston_L2_sensitivity_paper_xfitter_5_23.pdf

huston_L2_sensitivity_paper_xfitter_5_23.pptx

16:30 Quantification of the epistemic PDF uncertainty

Speaker: Aurore Courtoy (Instituto de Física, UNAM)

xFitter_23_AC.pdf

17:00 Bézier curves and pion PDFs with xFitter

Speaker: Lucas Kotz

xFitter23_Kotz.pdf

Thursday 4 May

09:00 → 10:30 Session 4: Debug and code developments

09:00 N3LO PDF evolution and APFEL update

Speaker: Dr Valerio Bertone (C.E.A. Paris-Saclay)

bertone_xFitter_external_meeting_04_05_2023.pdf

09:30 DYTURBO interface and its applications

Speaker: Stefano Camarda (CERN)

dyturbo.pdf

10:30 → 11:00 Coffee break

11:00 → 12:30 Session 4: Debug and code developments

11:00 Recent developments on TMD-PB fits

Speakers: Hannes Jung (Deutsches Elektronen-Synchrotron (DE)), Sara Taheri Monfared (Deutsches Elektronen-Synchrotron (DE))

Xfitter-2023-SaraTaheri.pdf

12:30 → 14:00 Lunch

14:00 → 15:30 Session 3: Ongoing and future projects with xFitter

14:00 Including qT-resummation in DY and its impact on PDF fits

Speaker: Alessandro Guida (Humboldt University of Berlin (DE))

04-05-23-DYfidCuts-xFitterWS-AGuida.pdf

14:30 Running of the weak mixing angle at the LHC

Speaker: Federico Vazzoler (Deutsches Elektronen-Synchrotron (DE))

Vazzoler_04_05_23.pdf

15:30 → 16:00 Coffee break

16:00 → 17:30 Session 3: Ongoing and future projects with xFitter

16:00 APPLfast update

Speakers: Claire Gwenlan (University of Oxford (GB)), Mr Lucas Kunz (KIT - Karlsruhe Institute of Technology (DE))

APPLfast_xFitter_talk.pdf

16:30 MATRIX interface to fast-interpolation tools

Speakers: Stefan Kallweit (Universita & INFN, Milano-Bicocca (IT)), Tomas Jezo (WWU ITP)

Kallweit.pdf

17:00 PineAPPL interface to xFitter and MSR mass studies with MCFM

Speaker: Dr Toni Makela (NCBJ)

pineappl_and_mtMSR.odp

pineappl_and_mtMSR.pdf

19:00 → 21:30 Pizza/Fondue all together

Friday 5 May

09:00 → 10:30 Debug and code developments

09:00 Impact of J/psi production data on PDFs - bug report

Speaker: Chris Flett (IJCLab)

xfitter_flett_may23.pdf

09:30 Bayesian PDF fits to ZEUS high-x data

Speaker: Michiel Botje (Nikhef National institute for subatomic physics (NL))

xFitter-230505.pdf

10:30 → 11:00 Coffee break

11:00 → 12:30 Code developments and closing remarks: Session 5

11:00 Coding session

Speakers: Alexander Glazov (Deutsches Elektronen-Synchrotron (DE)), Dr Francesco Giuli (CERN)

Shared googledoc

12:30 → 14:00 Lunch