Quarkonia As Tools 2020

Centre Paul Langevin

Centre Paul Langevin

Aussois, Vanoise Massif, France
Jean-Philippe Lansberg (Centre National de la Recherche Scientifique (FR))

The workshop will be the second edition of a new series of meetings focused on the experimental and theoretical studies of quarkonia as tools to explore the structure of nucleons and nuclei, the phase diagram of QCD, the spin content of the nucleons, the coupling of the Higgs boson to heavy quarks, ...

Each day will be dedicated to specific systems and observables: collisions involving protons, mesons and leptons, proton-nucleus collisions, heavy-ion collisions, polarised nucleons and spin observables, and exclusive reactions including the ultra-peripheral hadron collisions. In order to make your travel plans, note that there will be a session on Saturday morning.

Morning sessions will be reserved for review talks and topical presentations. In the afternoon, we will organise round tables for each topic. We will also organise a session of Tools for Quarkonia (HELAC-Onia, Madgraph, Pythia, ..., Strong2020 Virtual accesses, ...)

Topics & conveners:

  • Monday: H.S. Shao (Sorbonne U.): tools for PDFs, Double Parton Scattering, parton correlations,...
  • Tuesday: C. Van Hulse (University College Dublin): tools for GPDs, Wigner functions,...
  • Wednesday: M.G. Echevarria (Alcalá U.): tools for TMD functions, spin asymmetries,...
  • Thursday: M. Winn (CERN): tools for nuclear PDFs, Cold Nuclear Matter,...
  • Friday: E. Chapon (CERN): tools for Quark-Gluon Plasma,...
  • Saturday: DPS, jets, isolation, edition of a write-up

This scientific event is supported by the CNRS-IN2P3 (TMD@NLO, LIA FCPPL, PICS Excitonium), the P2I Dept. Paris Saclay U., the GDR QCD and the Labex P2IO.

Previous workshops:
Quarkonia As Tools 2019, January 13-19 2019, Aussois (France)

  • Amy Tee
  • An-Ping Chen
  • Benjamin Audurier
  • Bertrand Ducloue
  • Biswarup Paul
  • Carlo Flore
  • Charles-Joseph Naïm
  • Charlotte Van Hulse
  • Chloé Léger
  • Chris Flett
  • Chun-Lu Huang
  • Cédric Mezrag
  • David d'Enterria
  • Denys Yen Arrebato Villar
  • Florian Damas
  • Francesco Giovanni Celiberto
  • Ignazio Scimemi
  • Ionut Cristian Arsene
  • Jaebeom Park
  • Jana Crkovska
  • Jaroslav Adam
  • Jean-Philippe Lansberg
  • Jianwei Qiu
  • Jianxiong Wang
  • Jibo He
  • Jonathan Richard Gaunt
  • Laure Marie Massacrier
  • Li Xu
  • Luca Maxia
  • Luke McConnell
  • Marek Bohdan Walczak
  • Maria Vittoria Garzelli
  • marie boer
  • Matt Durham
  • Matteo Rinaldi
  • Maxim Nefedov
  • Melih Arslan Ozcelik
  • Michael Andreas Winn
  • Miguel Echevarria
  • Nodoka Yamanaka
  • Oleg Teryaev
  • Olivier Mattelaer
  • Peng Zhang
  • Pieter Taels
  • Pol Gossiaux
  • Rabah Abdul Khalek
  • Rajesh sangem
  • Renaud Boussarie
  • Riccardo Nagar
  • Robin Caron
  • Ronan Mcnulty
  • Shinsuke Yoshida
  • Shohini Bhattacharya
  • Stephane Platchkov
  • Stéphane Delorme
  • Thomas Mehen
  • Tomas Kasemets
  • Umberto D'Alesio
  • Valerio Bertone
  • Volodymyr Kotlyar
  • Xiaojun Yao
  • Yiannis Makris
  • Émilien Chapon
    • 7:00 PM
      Welcome drink Bar


    • 8:00 PM
    • proton-proton, electron-proton and electron-positron collisions: review talks
      • 1
        Introduction to the philosophy of the "Quarkonia as Tools" workshops
      • 2
        Everything You Always Wanted to Know About Factorisation in Quarkonium Production* (*But Were Afraid to Ask)

        low pT (TMD), high pT (FF), end point (SCET), quarkonium + heavy quark (CT), double quarkonium (new issue ?)

        Speaker: Thomas Mehen (Duke University)
      • 3
        Overview of "conventional" quarkonium measurements : what's new ?
        Speaker: Xu Li (Tsinghua)
      • 4
        KT factorisation in quarkonium production: associated production and going to one-loop accuracy
        Speaker: Dr Maxim Nefedov (Samara State University)
      • 10:00 AM
        Coffee break
      • 5
        Experimental overview of less conventional quarkonia: eta(c), chi(Q), X(3872) production
        Speaker: Jibo He (University of Chinese Academy of Sciences (CN))
      • 6
        Quarkonium in/with/outside jets
        Speaker: Yiannis Makris
      • 7
        Overview on Quarkonium Associated Measurements at the LHC (Onium pair, Onium+Q, Onium Z/W, ...)
        Speaker: Amy Tee (Lancaster University (GB))
      • 8
        Brainstorming on EIC "Inclusive" quarkonium production vs the HERA legacy
        Speaker: Jianwei Qiu (Jefferson Lab)
    • 12:00 PM
      Lunch and free afternoon
    • proton-proton, electron-proton and electron-positron collisions: Afternoon session: Q&A, topical talk & table
      • 9
        Q&A (Young Scientists 15')
      • 10
        Update of NRQCD fits
        Speaker: Jianxiong Wang (IN)
      • 11
        Theoretical Constraints on low-scale gluon PDFs from Quarkonia
        Speaker: Melih Arslan Ozcelik
      • 12
        Round table discussion

        Chair: Vato Kartvelishvili

      • 13
        Speaker: Jianxiong Wang (IN)
      • 14
        HELAC-Onia Web
        Speaker: Carlo Flore (University and INFN, Cagliari)
      • 15
        Tool session Part 1 (discussion)
    • 8:00 PM
      Fondue Savoyarde
    • exclusive/diffractive reactions: review talks
      Convener: Charlotte Barbara Van Hulse (University College Dublin (IE))
      • 16
        Exclusive measurements of quarkonia and TCS in lepton-nucleon interactions
        Speaker: Marie Boer (JLab)
      • 17
        Measurements of quarkonia in Ultra-Peripheral Collisions at RHIC
        Speaker: Jaroslav Adam (BNL)
      • 18
        Measurements of quarkonia in Ultra-Peripheral Collisions at LHC
        Speaker: Marek Bohdan Walczak (University of Warsaw (PL))
      • 19
        Isolation in inclusive and exclusive processes
        Speaker: Ronan Mcnulty (University College Dublin (IE))
      • 10:00 AM
        Coffee break
      • 20
        Exclusive double quarkonium production and generalized TMDs of gluons
        Speaker: Shohini Bhattacharya (Temple University)
      • 21
        Tensor polarisation as a probe for hadrons and hadronic matter
        Speaker: Oleg Teryaev (JINR)
      • 22
        Extraction of the low x and low scale gluon PDF via Ultra-Peripheral Collisions
        Speaker: Chris Flett
      • 23
        Ultra-peripheral collisions to constrain GPDs
        Speaker: Cedric Mezrag
    • 12:00 PM
      Lunch and free afternoon
    • exclusive/diffractive reactions: round table
      Convener: Ronan Mcnulty (University College Dublin (IE))
      • 24
        Q&A (Young Scientists 15')
        Speaker: Ronan Mcnulty (University College Dublin (IE))
      • 25
        Importance of relativistic corrections inclusive vs exclusive quarkonium production processes
        Speaker: An-ping Chen (Center for High Energy Physics, Peking University)
      • 26
        From Mueller-Navelet jets to forward J/psi+backward jet production
        Speaker: Francesco Giovanni Celiberto (University of pavia and INFN)
      • 27
        Topical talk (TBC)
      • 28
        Round table discussion (Young scientists 5' Q&A)
        Speaker: Ronan Mcnulty (University College Dublin (IE))
      • 29
        Speaker: Olivier Mattelaer (UCLouvain)
      • 30
      • 31
        Tool session Part 2 (discussion)
    • 8:00 PM
    • proton-nucleus and electron-nucleus
      • 46
        PDF fits with heavy-flavour production and quarkonia at the LHC: opportunities, results and issues with present approaches and beyond
        Speaker: Maria Vittoria Garzelli (Universita e INFN, Firenze (IT))
      • 47
        Introduction and open questions in proton-nucleus collisions
        Speaker: John Matthew Durham (Los Alamos National Laboratory)
      • 48
        Nuclear PDF with NNPDF: constraints without parameterisation bias and next steps
        Speaker: Rabah Abdul Khalek (Nikhef)
      • 49
        Coherent Energy loss as dominant explanation of nuclear modification: new developments and ways forward
        Speaker: Mr Charles-Joseph Naïm (Université Paris-Saclay (FR))
      • 10:00 AM
        Coffee break
      • 50
        New obervables in pA collsiions: feasibility and status of chic, etac and DY
        Speaker: Jana Crkovska (Los Alamos National Laboratory (US))
      • 51
        CGC inclusive particle production: latest developments and open points
        Speaker: Bertrand Ducloue (The University of Edinburgh)
      • 52
        Flow like patterns in pA and pp with quarkonia and heavy-flavour
        Speaker: Florian Damas (Centre National de la Recherche Scientifique (FR))
      • 53
        Opportunities and caveats with nuclear pA heavy-flavour and quarkonium data: input data and combination attempts (CANCELLED)
        Speaker: Ingo Schienbein (Universite Grenoble Alpes)
    • 12:00 PM
      Lunch and free afternoon
    • proton-nucleus and electron-nucleus: Question session, short presentations and round table
      Convener: Michael Andreas Winn (Université Paris-Saclay (FR))
      • 54
        Excited quarkonia states in pp and pPb:
        Speaker: Dr Biswarup Paul (Universita e INFN, Cagliari (IT))
      • 55
        Q&A (young scientists 15')
      • 56
        Round table

        Questions/items for animation:
        - conceptual problems and underlying assumptions within different theoretical approaches to pPb collisions
        - trial to build clear consensus on measurements that are decisive in point 1
        - separation (which diagram is used where and neglected elsewhere) and unification of approaches: what do we know and what should we know to make fits/combinations or usage for other questions
        - collective effects: to which extent relevant? For radial flow, any quantitative estimate to which extent it can be explained by kt-broadening?
        4) Measurements at EIC

      • 57
        Back to the 3 first days
    • 8:00 PM
      Workshop dinner
    • nucleus-nucleus collisions: Morning session
      Convener: Émilien Chapon (CERN)
    • 12:00 PM
      Lunch and free afternoon
    • nucleus-nucleus collisions: Round table and discussion
      Convener: Pol Gossiaux (Subatech)
      • 65
        Q&A (Young Scientists 15')
        Speaker: Pol Gossiaux (Subatech)
      • 66
        A density operator model for quarkonium production in PbPb collisions
        Speakers: Denys Yen Arrebato Villar (IMT Atlatique), Denys Yen Arrebato-Villar
      • 67
        Topical talks (max 2 of 10')
      • 68
        Round table discussion
        Speaker: Pol Gossiaux (Subatech)
      • 69
        Back to the 4 first days
    • 8:00 PM
    • DPS
      • 70
        Status on DPS factorisation
        Speaker: Jonathan Richard Gaunt (CERN)
      • 71
        Status on dPDF evolution
        Speaker: Riccardo Nagar (University of Milan Bicocca – INFN)
      • 72
        Satus of DPS studies with quarkonia
        Speaker: Dr Nodoka Yamanaka (University of Massachusetts)
      • 73
        Theoretical developments and phenomenology of DPS: quarkonium and beyond

        (Could be on Saturday if Riccardo comes)

        Speaker: Matteo Rinaldi (Perugia University and INFN, Perugia)
      • 74
        DPS in pA collisions and TPS
        Speaker: David d'Enterria (CERN)
      • 75
    • 10:30 AM
    • Round table
    • 1:00 PM