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

14 déc. 2020, 08:00 → 18 déc. 2020, 18:00 Europe/Paris

IJCLab

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. 

Group photo-1.png

Group photo 2.png

lun. 14 décembre

10:00 → 11:00 Question and Discussion on (recorded) lectures: by F. Becattini I

Zoom: https://ijclab.zoom.us/j/98633216281?pwd=RHdPRWhrNFc2bk5ocnFEMU5uMm9hdz09

Link to lecture videos

14:00 → 15:00 Question and Discussion on (recorded) lectures: by J. Rademaker I

https://ijclab.zoom.us/j/98633216281?pwd=RHdPRWhrNFc2bk5ocnFEMU5uMm9hdz09

link to lecture videos

mar. 15 décembre

10:00 → 11:00 Question and Discussion on (recorded) lectures: by J. Rademaker II

Zoom: https://ijclab.zoom.us/j/98633216281?pwd=RHdPRWhrNFc2bk5ocnFEMU5uMm9hdz09

Link to lecture videos

14:00 → 15:00 Question and Discussion on (recorded) lectures: by F. Becattini II

https://ijclab.zoom.us/j/98633216281?pwd=RHdPRWhrNFc2bk5ocnFEMU5uMm9hdz09

link to lecture videos

mer. 16 décembre

10:00 → 12:00 Quarkonium production and polarisation in hadronic collisions: 3

Président de session: Sergey Barsuk (LAL)

10:00 Theory summary: quarkonium polarisation

Orateur: Hua-Sheng Shao (CERN)

Shao_GDRQCD.pdf

10:25 Fitting quarkonium production in NRQCD and LHCb prospects

Orateur: Usachov Andrii

ausachov_NRQCD_prod.pdf

10:45 Measurement of Jpsi polarisation in nucleus-nucleus collisions

Orateur: Luca Micheletti

quarkonium_polarization.pdf

11:05 Polarisation of heavy-quarkonium in nucleus-nucleus collisions: discussion round

• discuss possible physics effects
• related to standard quarkonium phenomenology in heavy-ion collisions
• related to magnetic field
• related to vorticity

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

Orateurs: Jean-Philippe Lansberg (IPNO - Paris-Sud U. - CNRS/IN2P3), Michael Winn (DPhN/IRFU/DRF/CEA Paris-Saclay), Scomparin Enrico

Collection of comments, input for discussion round

Polarization_HI.pdf

polarization in AA.pdf

Round-Table-Quarkonium-Polarisation-AA-161220.pdf

14:00 → 16:00 Polarisation in hadron decays from ee to pp collisions (Formalism and applications): 3

Link to the google doc document: https://docs.google.com/document/d/1yfhdlEI67U8RjCzyN3MLCZpJFrrax7G_eQE2aRcvSkU/edit

Zoom link: https://ijclab.zoom.us/j/96610318064?pwd=a1lESWp4ZFBoRDFMSHJUWkMzdCtpZz09#success

Président de session: Patrick Robbe (LAL Orsay)

Discussion document

ZOOM link

14:00 Heavy-meson decays: experiment and phenomenology

Orateur: Poluektov Anton

polarisation_in_b_decays.pdf

14:25 Heavy baryon decays: experiment

Orateur: Elisabeth Niel (LAL Orsay)

BaryonsPola_noLHCbresults.pdf

14:45 Heavy-baryon decays: Phenomenology

Orateur: Mikhail Mikhasenko

polarization_v0.pdf

15:05 Discussion on amplitude analysis

Orateur: Emi Kou et al

Discussion round notes

jeu. 17 décembre

10:00 → 12:00 Magnetic fields, QCD matter and effects in heavy-ions

Président de session: Jean-Yves Ollitrault (IPhT Saclay)

10:00 Magnetic fields and thermal QCD

Orateur: Kenji Fukushima

fukushima.pdf

10:30 Chiral magnetic effect: introduction and overview

Orateur: Panos Christakoglou

Christakoglou.Paris.12172020ForPDF.pdf

10:55 Discussion on magnetic field and chiral magnetic effect

Orateur: Jean-Yves Ollitrault et al

Discussion round

14:00 → 16:00 Angular momentum and polarisation: vorticity in heavy-ion collisions

Président de session: Frencesco Becattini

14:00 Introduction and experimental overview

Orateur: Mike Lisa

14:25 Prospects on vorticity theory

Orateur: Enrico Speranza

speranza_polarization.pdf

14:45 Discussion round: future directions at RHIC and LHC

Orateurs: Enrico Speranza, Michael Winn, and others

Discussion round notes

ven. 18 décembre

10:00 → 12:00 Polarisation for hadron structure: TMDs & GPDs

Président de session: Nicole d'Hose (IRFU/CEA)

10:00 TMDs in Quarkonium production

Orateur: C. Flore

Flore-TMDs-quarkonia.pdf

10:20 GPDs and polarisation measurements

Orateur: Charlotte van Hulse

pol_GPDs.pdf

10:40 GPD extraction from experimental data

Orateur: Pawel Sznaider

sznajder_0919.pdf

11:00 Discussion on TMD & GDP

Orateur: Maxime Defurne et al

Discussion space

14:00 → 16:00 Quarkonium at RHIC/LHC fixed-target, polarisation in fragmentation functions in ee

Président de session: Jean-Philippe Lansberg (IPNO - Paris-Sud U. - CNRS/IN2P3)

14:00 Quantum tomography

Orateur: Daniel Takaki

DTT - Pol workshop - Dec 2020.pdf

14:20 Production of quarkonium at RHIC and at fixed-target mode at the LHC

Orateur: D. Kikola

14:40 Lambda production in e+e-

Orateurs: Anselm Vossen, Yinghui Guan

Kikola-quarkonium-RHIC.pdf

15:05 Discussion round: quarkonium production

Orateurs: Hua-Sheng Shao (CERN), J.-P. Lansberg, and others

Discussion round: quarkonium production