PDF4LHC 2024 meeting

2 Dec 2024, 09:00 → 3 Dec 2024, 16:00 Europe/Zurich

4/S-030 (CERN)

Amanda Sarkar (University of Oxford (GB))

General PDF4LHC meeting. Please note that right now the timetable is a work in progress with both timings and topics subject to change.

Monday 2 December

09:00 → 10:05 Reports from experiments

09:00 Introduction

09:05 News from ATLAS

Speaker: Eimear Isobel Conroy (University of Oxford (GB))

09:25 News from LHCb

Speaker: Nathan Grieser

09:45 News from CMS

10:10 → 12:20 Reports from PDF fitters

10:10 ABMP update

Speaker: Maria Vittoria Garzelli (Hamburg University (DE))

10:30 Coffee

10:50 MSHT update

Speaker: Robert Samuel Thorne (University College London (UK))

11:10 CT update

Speaker: Prof. Pavel Nadolsky (Southern Methodist University/Michigan State University)

11:35 NNPDF update

Speaker: Juan Rojo Chacon (Nikhef National institute for subatomic physics (NL))

11:50 NNPDF alphas

Speaker: Roy Stegeman

12:20 → 18:35 New ideas: Uncertainties, closure, tolerance

12:20 Bayesian studies of the MC replica method

Speakers: James Moore, Maria Ubiali (University of Cambridge (GB))

12:35 Bayesian combination and determination of PDFs

Speaker: Mark Costantini

12:50 Lunch

13:45 Classification and combination of PDFs using polynomial approximators

Speakers: Aurore Courtoy (Instituto de Física, UNAM), Aurore Courtoy (IFPA)

14:05 NNLO residual PDFS for massive VFN schemes at the LHC

Speaker: Marco Guzzi (Kennesaw State University)

14:25 The Gaussian Mixture Model

Speaker: Kirtimaan Ajaykant Mohan

14:45 Gaussian processes

Speakers: Tommaso Giani (Nikhef National institute for subatomic physics (NL)), Tommaso Giani, Tommaso Giani

15:10 Neural nets

Speakers: Luigi Del Debbio (The University of Edinburgh (GB)), Luigi Del Debbio (Unknown)

15:30 coffee

15:50 Recent developments in the machine learning modelling of PDFs

Speakers: TIMOTHY J HOBBS (Southern Methodist University), Dr TIMOTHY J HOBBS (Argonne National Laboratory)

16:10 Uncertainties on uncertainties

Speakers: Matthew Reader, Robert Samuel Thorne (University College London (UK))

16:30 MCMC for uncertainties

Speaker: Aleksander Kusina

16:55 MSHT: closure tests and comparison to the neural net approach

Speaker: Dr Lucian Alexander Harland-Lang (University College London)

17:15 Closure tests with inconsistent data

Speakers: Giovanni De Crescenzo (University of Heidelberg), Stefano Forte (Università degli Studi e INFN Milano (IT))

17:35 Discussion

Tuesday 3 December

09:00 → 13:20 New ideas: Beyond NNLO- predictions for the future/PDFs for precision SM measurements

09:00 QED modifications to the cross section predictions at NNLO and aN3LO

Speakers: TIMOTHY J HOBBS (Southern Methodist University), Dr TIMOTHY J HOBBS (Argonne National Laboratory)

09:25 aN3LO vs NNLO PDFs

10:30 coffee

10:50 PDFs in SM precision measurements

14:20 → 16:00 possible extension