Kickoff meeting - GDR-QCD / WG1 : Simple and Multiple Interactions between Partons

Jun 21, 2021, 9:00 AM → Jun 23, 2021, 2:00 PM Europe/Paris

Cédric Lorcé (Ecole Politechnique), Dominique Marchand (IPN Orsay, CNRS/IN2P3 and University Paris-Sud), Zaida Conesa del Valle (IPN Orsay)

This is the kickoff meeting of our GDR-QCD working group. It is open to all GDR-QCD members. The idea is to gather people intested in "Simple and Multiple Interactions between Partons", and to identify central questions that can be addressed in the next four years.

The format of the meeting will be two or three half-days (likely the morning) from June 21 to June 23. The meeting will be online with presentations and discussions.

Please register and submit your proposal for an oral contribution before May 31st on the website (see tab on the left).

Monday, June 21

1 Welcome

Speakers: Cédric Lorcé (Ecole Politechnique), Dominique Marchand (IJClab,CNRS/IN2P3 - Université Paris-Saclay), Zaida Conesa del Valle (IJCLab (CNRS/IN2P3, Université Paris-Saclay))

2 Collective behaviour in small systems

Speaker: Maxime Guilbaud (SUBATECH)

WG1_GDR_SmallSystem.pdf

3 Quarkonia production in high multiplicity environment

Speaker: Sarah Porteboeuf-Houssais (LPC)

Porteboeuf_GDRQCD.pdf

10:40 AM Coffee break

4 On gluon polarization at small x

Speaker: Cyrille Marquet (CPHT - Ecole Polytechnique)

GDR_marquet.pdf

5 First-time observation of Timelike Compton Scattering, with the CLAS12 detector

Speaker: Pierre Chatagnon (Genova)

PresentationTCS.pdf

6 Discussion

Tuesday, June 22

7 Nuclear GPDs with the ALERT detector

Speaker: Raphaël Dupré (IPN Orsay)

Modele.pdf

8 Positron beams for nuclear femtography

Speaker: Eric VOUTIER (IPNO)

e+@JLab-GdRQCD .pdf

10:30 AM Coffee break

9 GPD modelization and lQCD

Speaker: Dr Cédric Mezrag (Irfu/DPhN)

gpdmodels.pdf

10 Some news on GPDs and TDAs

Speaker: bernard pire (cpht polytechnique)

GDR-2021.pdf

11 Discussion

Wednesday, June 23

Joint session with Aussois Quarkonium & QCD meeting

Joint session with Aussois Quarkonium & QCD meeting

https://indico.cern.ch/event/1041993/

12 update on PDFS

Speaker: Valerio Bertone (IRFU, CEA, Université Paris-Saclay)

bertone_GDR-QCD_WG1_23_06_2021.pdf

13 recent developments in nCTEQ

Speaker: Aleksander Kusina (LPSC, Grenoble)

14 experimental constrains nPDF

Speaker: Émilien Chapon (IHEP / CAS (China))

chapon_NPDF_GDRQCD.pdf

10:30 AM Coffee break

15 Constraining PDFs with J/psi and Upsilon inclusive photoproduction

Speakers: Yelyzaveta Yedelkina, Yelyzaveta Yedelkina (Paris-Saclay University, IJCLab Orsay)

Yedelkina_Constraining_PDFs.pdf

16 Ideas for UPC measurements at the LHC in view of hadron structure

Speakers: Aude Glaenzer (CEA - Saclay), Michael Winn (DPhN/IRFU/DRF/CEA Paris-Saclay)

GDR QCD - interactions between partons (1).pdf

17 Determination of the gluon PDF using constraints from quarkonia

Speaker: Chris Flett

GDR_Flett.pdf

18 heavy-flavour baryon production and implications for fragmentation functions

Speaker: Jaime Norman (LPSC Grenoble)

HFbaryon_QCD_jnorman.pdf