3DPartons week

Europe/Paris
Description

3DPartons is a virtual access infrastructure supported by the European project STRONG-2020. 3DPartons gives access to open-source computing codes necessary for high precision phenomenology in the field of 3D hadron structure. Benefiting from the experience of decades of parton distribution function (PDF) studies, the GPD and TMD communities can find in 3DPartons a forum where they can mutualize knowledge and know-how about scientific and technical problems related to the complexity of the GPD and TMD computing chains.

Participants
  • Alice Khoudli
  • Aman Desai
  • Bernard Pire
  • Brandon Kriesten
  • Cédric Mezrag
  • Daria Sokhan
  • Eric Voutier
  • Fernanda Steffens
  • Francesco Bossù
  • Hervé Dutrieux
  • Hervé Moutarde
  • Jakob Schönleber
  • Jakub Wagner
  • Juan Sebastian Alvarado
  • Kamil Augsten
  • Kemal Tezgin
  • Kornelija Passek-Kumerički
  • Kresimir Kumericki
  • Lech Szymanowski
  • Marija Čuić
  • Maxime DEFURNE
  • Michael Riberdy
  • Nicole d'Hose
  • Nikola Crnković
  • Olga Bessidskaia Bylund
  • Paweł Sznajder
  • Pietro Dall'Olio
  • Qin-Tao Song
  • Raphaël Dupré
  • Renaud Boussarie
  • Saad Nabeebaccus
  • Salvatore Fazio
  • Sigtryggur Hauksson
  • Silvia Niccolai
  • Valerio Bertone
  • Victor Martinez-Fernandez
  • Vladimir Braun
  • Yuxun Guo
  • +4
    • 9:15 AM 12:30 PM
      GPDs at EIC
      Convener: Pietro Dall'Olio (Universidad de Huelva)
      • 9:15 AM
        Welcome 15m
        Speaker: Cédric Mezrag
      • 9:30 AM
        Exclusive processes with the ePIC detector at the Electron-Ion Collider 30m
        Speaker: Daria Sokhan (CEA Saclay / Glasgow U.)
      • 10:00 AM
        Overview and prospects of DVCS studies for EIC 30m
        Speaker: Salvatore Fazio (Universita della Calabria e INFN (IT))
      • 10:30 AM
        Coffee Break 30m
      • 11:00 AM
        Low and moderate x gluon contributions to DVCS, TCS and DDVCS 30m
        Speaker: Renaud BOUSSARIE (CPHT, CNRS, Ecole polytechnique, IP Paris)
      • 11:30 AM
        EpIC: A Monte Carlo event generator for exclusive processes 30m

        There has been an increasing interest in exclusive processes in recent years. Part of this interest stems from the open questions of how the spin of the proton is decomposed into its intrinsic spin and orbital motions, along with the possibility of gaining energy-momentum densities through exclusive processes. During this presentation, we will introduce the EpIC Monte Carlo event generator. By utilizing the PARTONS framework, the EpIC generator offers a flexible structure and a variety of model options which make it an attractive tool for the community. In addition, the EpIC generator incorporates first-order radiative corrections in its architecture. Therefore, EpIC offers a comprehensive set of features that will enable nucleon structure to be studied more deeply through impact studies on future electron-ion colliders.

        Speaker: Kemal Tezgin
      • 12:00 PM
        Exploring the Nucleus in 3D with GPDs 30m
        Speaker: Raphaël Dupré (IJCLab, Univ. Paris-Saclay)
    • 12:30 PM 2:00 PM
      Lunch Break 1h 30m
    • 2:00 PM 3:00 PM
      GPDs on the lattice
      Convener: Hervé MOUTARDE
    • 3:00 PM 5:00 PM
      GPDs at LHC
      Convener: Hervé MOUTARDE
      • 3:00 PM
        GPDs in UPC with Lepton pair production 30m
        Speaker: Jakub Wagner
      • 3:30 PM
        Coffee Break 30m
      • 4:00 PM
        Aspects of the modelling of GPDs at very small Bjorken-x 30m

        Heavy meson photoproduction in UPC provides a welcome indirect access to gluon PDFs in the very small x region. Technically, the cross-section involves generalised parton distributions (GPDs). A popular proposal to relate the GPDs to PDFs based on the Shuvaev transform has been used to interpret recent experimental data. I propose to discuss in detail the regime of validity of this proposal and to provide tools to quantify the level of uncertainty one can expect from such modelling.

        Speaker: Dr Hervé Dutrieux (CEA Saclay/Irfu)
      • 4:30 PM
        Matching GTMDs onto GPDs 30m
        Speaker: Dr Valerio Bertone (C.E.A. Paris-Saclay)
    • 5:00 PM 5:30 PM
      DVMP and multiparticle exclusive processes
      Convener: Hervé MOUTARDE
      • 5:00 PM
        Diphoton photoproduction on a nucleon at next to leading order 30m
        Speaker: Lech Szymanowski (National Centre for Nuclear Research)
    • 9:30 AM 12:30 PM
      High precision DVCS
      Convener: Kemal Tezgin
      • 9:30 AM
        The DVCS experimental program @ Jefferson Lab 30m
        Speaker: Dr maxime defurne (CEA-Saclay)
      • 10:00 AM
        Higher-power kinematic corrections in DVCS 30m
        Speaker: Vladimir Braun (University of Regensburg)
      • 10:30 AM
        Coffee Break 30m
      • 11:00 AM
        Deeply-virtual Compton scattering at the next-to-next-to-leading order 30m
        Speaker: Jakob Schönleber (University of Regensburg)
      • 11:30 AM
        Gepard - tool for studying GPDs 30m
        Speaker: Kresimir Kumericki
      • 12:00 PM
        Status of PARTONS 30m
        Speaker: Hervé MOUTARDE
    • 12:30 PM 2:00 PM
      Lunch Break 1h 30m
    • 2:00 PM 5:00 PM
      CFF and GPDs extraction
      Convener: Victor Martinez
    • 5:00 PM 5:30 PM
      Continuum Models
    • 5:30 PM 6:30 PM
      Informal discussions with beer & wine 1h
    • 7:00 PM 9:00 PM
      Workshop Dinner 2h

      Le gramophone, Orsay

    • 9:30 AM 12:30 PM
      DVMP and multiparticle exclusive processes
      Convener: Hervé Dutrieux (CEA Saclay/Irfu)
      • 9:30 AM
        Hard Exclusive Meson Production at COMPASS 30m
        Speaker: Mr Kamil Augsten (Czech Technical University (CZ))
      • 10:00 AM
        Higher order and higher-twist aspects of DV and photoproduction of mesons 30m
        Speaker: Kornelija Passek-Kumerički (Ruđer Bošković Institute, Zagreb, Croatia)
      • 10:30 AM
        Coffee Break 30m
      • 11:00 AM
        Opportunities for DDVCS measurements at Jefferson Lab 30m
        Speaker: Eric Voutier
      • 11:30 AM
        Phenomenology of DDVCS in the era of new experiments 30m
        Speaker: Victor Martinez
      • 12:00 PM
        Accessing GPDs through the exclusive photoproduction of a photon-meson pair with a large invariant mass 30m
        Speaker: Saad Nabeebaccus (IJCLab)
    • 12:30 PM 2:00 PM
      Lunch Break 1h 30m
    • 2:00 PM 5:30 PM
      Modelling, coding and extraction efforts
      Convener: Dr maxime defurne (CEA-Saclay)
      • 2:00 PM
        Nucleon GPDs & Valence Light Front Wave Functions 30m
        Speaker: Michael Riberdy (CEA)
      • 2:30 PM
        Inverting the Radon Transform using artificial neural networks 30m
        Speaker: Pietro Dall'Olio (Universidad de Huelva)
      • 3:00 PM
        Updates from JAM collaboration 30m
        Speaker: nobuo sato (jlab)
      • 3:30 PM
        Coffee Break 30m
      • 4:00 PM
        Revisiting GPD evolution in momentum space 30m
        Speaker: Dr Valerio Bertone (C.E.A. Paris-Saclay)
      • 4:30 PM
        Discussion Session : Synergy between public codes and integration of state-the-art theoretical developments 1h