Polarisation measurements in ee ep, pp and heavy-ions collisions



Laboratoire de Physique des 2 infinis Irène Joliot-Curie – IJCLab https://www.ijclab.in2p3.fr/en/home/

Polarisation and spin aligment measurements and related  observables allow to learn about fundamental interactions and fluid dynamics in electron-positron, electron-proton, proton-proton/nucleus and nucleus-nucleus collisions. The goal of this workshop is the combination of a pedagogic introduction for students and scientists from different angles and a view to new measurements based on large luminosities at existing and upcoming facilities.

This is a fully online workshop. 

We propose two introductory lectures about amplitude analysis by Jonas Rademaker and hydrodynamics and polarisation by Francesco Becattini (each 3 x 45 mins) recorded in advance. Two sessions for question/discussion on each lecture will be organised on Monday and Tuesday. We strongly recommend PhD students to listen to the lectures and prepare questions.

This programme is followed by a 3 days long workshop that contains 6 sessions with each about 1h duration allowing for give a taste of the respective research goals, current results and new ideas. 

  • Andrii Usachov
  • Aude Glaenzer
  • Carlo Flore
  • Cynthia Hadjidakis
  • Daniel Tapia Takaki
  • Elisabeth Niel
  • Emi KOU
  • Florian Damas
  • Hua-Sheng Shao
  • Jean-Yves Ollitrault
  • Jonas Rademacker
  • Laure Massacrier
  • Luca Micheletti
  • Michael Winn
  • Mikhail Mikhasenko
  • Panos Christakoglou
  • Patrick Robbe
  • Robin Caron
  • Sebastien Perrin
    • 10:00 11:00
      Question and Discussion on (recorded) lectures
    • 14:00 15:00
      Question and Discussion on (recorded) lectures
    • 10:00 11:00
      Question and Discussion on (recorded) lectures: 1
    • 14:00 15:00
      Question and Discussion on (recorded) lectures
    • 10:00 11:30
      Quarkonium production and polarisation in hadronic collisions: 3
      • 10:00
        Theory summary: quarkonium polarisation 25m
        Speaker: Hua-Sheng Shao (CERN)
      • 10:25
        Fitting quarkonium production in NRQCD and LHCb prospects 20m
        Speaker: Usachov Andrii
      • 10:45
        Measurement of Jpsi polarisation in nucleus-nucleus collisions 20m
        Speaker: Luca Micheletti
      • 11:05
        Polarisation of heavy-quarkonium in nucleus-nucleus collisions: discussion round 20m
        • discuss possible physics effects
        • related to standard quarkonium phenomenology in heavy-ion collisions
        • related to magnetic field
        • related to vorticity

        - https://inspirehep.net/literature/621553

        Speakers: Jean-Philippe Lansberg (IPNO - Paris-Sud U. - CNRS/IN2P3), Michael Winn (DPhN/IRFU/DRF/CEA Paris-Saclay), Scomparin Enrico
    • 14:00 15:45
      Polarisation in hadron decays from ee to pp collisions (Formalism and applications): 3
      • 14:00
        Heavy-meson decays: experiment and phenomenology 25m
        Speaker: Poluektov Anton
      • 14:25
        Heavy baryon decays: experiment 20m
        Speaker: Elisabeth Niel (LAL Orsay)
      • 14:45
        Heavy-baryon decays: Phenomenology 20m
        Speaker: Mikhail Mikhasenko
    • 10:00 11:30
      Magnetic fields, QCD matter and effects in heavy-ions
      Convener: Jean-Philippe Lansberg (IPNO - Paris-Sud U. - CNRS/IN2P3)
      • 10:00
        Magnetic fields and thermal QCD 30m
        Speaker: Fukushima
      • 10:30
        Chiral magnetic effect: introduction and overview 25m
        Speaker: Christakoglou
    • 14:00 15:30
      Angular momentum and polarisation: vorticity in heavy-ion collisions
      Convener: Jean-Philippe Lansberg (IPNO - Paris-Sud U. - CNRS/IN2P3)
      • 14:00
        Introduction and experimental overview 25m
        Speaker: Mike Lisa
      • 14:25
        Prospects on vorticity theory 20m
        Speaker: Enrico Speranza
      • 14:45
        Discussion round: future directions at RHIC and LHC 20m
        Speakers: Michael Winn, and others
    • 10:00 11:30
      Polarisation for hadron structure: TMDs & GPDs
      • 10:00
        TMDs in double Jpsi production 20m
        Speaker: C. Flore
      • 10:20
        GPDs and polarisation measurements 20m
        Speaker: Charlotte van Hulse
      • 10:40
        GPD extraction from experimental data 20m
        Speaker: Pawel Sznaider
    • 14:00 16:35
      Quarkonium at RHIC/LHC fixed-target, polarisation in fragmentation functions in ee
      • 14:00
        Quantum tomography 20m
        Speaker: Daniel Takaki
      • 14:20
        Production of quarkonium at RHIC and at fixed-target mode at the LHC 20m
        Speaker: D. Kikola
      • 14:40
        Fragmentation functions and lambda(c) production in e+e- 25m
        Speakers: Anselm Vossen, Yinghui Guan
      • 15:05
        Discussion round: quarkonium production 20m
        Speakers: J.-P. Lansberg, and others