Name: Quarkonium Working Group Workshop
Start: 2025-11-17T08:00:00+01:00
End: 2025-11-21T18:30:00+01:00
Location: CERN

Quarkonium Working Group Workshop

from Monday, 17 November 2025 (08:00) to Friday, 21 November 2025 (18:30)

Monday, 17 November 2025
08:00 Registration
08:00 - 08:50
Room: 500/1-001 - Main Auditorium
Contributions

08:00 Registration
08:50 Welcome
08:50 - 09:00
Room: 500/1-001 - Main Auditorium
Contributions

08:50 Welcome - Nora Brambilla (TUM)
09:00 Spectroscopy 1.1
09:00 - 10:40
Room: 500/1-001 - Main Auditorium
Contributions

09:00 Energy scan results from Belle and Belle II - Dmytro Meleshko (Giessen U.)

09:20 Exotic mesons in B decays at LHCb - Salil Joshi (Warsaw-NCBJ)

09:40 Pentaquark states at LHCb - Mengzhen Wang (CERN)

10:00 Tetraquarks and Pentaquarks in BOEFT - Abhishek Mohapatra (TUM)

10:20 Exotic hidden-heavy hadrons and where to find them - Roberto Bruschini (Ohio State U.)
10:40 Coffee break
Coffee break
10:40 - 11:10
Room: 500/1-001 - Main Auditorium
11:10 Spectroscopy 1.2
11:10 - 12:50
Room: 500/1-001 - Main Auditorium
Contributions

11:10 Spectroscopy results from LHCb - Ilya Segal (Bochum U.)

11:30 Tetraquarks in the Born-Oppenheimer approximation - Antonio Davide Polosa (Sapienza University of Rome)

11:50 Quark Mass dependence of doubly heavy tetraquark binding - Anthony Sebastian Francis (National Yang Ming Chiao Tung University)

12:10 Hidden-Heavy pentaquarks and where to find them - Eric Braaten (Ohio State U.)

12:30 Open flavor threshold effects on quarkonium spectrum in BOEFT - Tommaso Scirpa (TUM)
12:50 Lunch break

12:50 - 14:00
Room: 500/1-001 - Main Auditorium
14:00 Spectroscopy 1.3
14:00 - 15:25
Room: 500/1-001 - Main Auditorium
Contributions

14:00 Flavor mixing in charmonium and light mesons - Francesco Giacomo Knechtli (Bergische Universitaet Wuppertal (DE))

14:20 Spin dependent potentials for hybrids - Paul Pütz (TUM)

14:40 Tetraquarks on the lattice - Padmanath Madanagopalan (IMSc Chennai)

15:00 $e^+$ $e^-$ annihilation into hidden charm final states at BESIII - Zhentian Sun (Shandong U.)
15:25 Coffee break
Coffee break
15:25 - 16:00
Room: 500/1-001 - Main Auditorium
16:00 Spectroscopy 1.4
16:00 - 18:25
Room: 500/1-001 - Main Auditorium
Contributions

16:00 Spectroscopy results from Belle and Belle II - Roman Mizuk (IJCLab, Orsay)

16:20 Spectroscopy of all-charm tetraquarks - Elena Santopinto (INFN (IT))

16:40 Global Analysis of $e^+$ $e^-$ Cross Sections in the Charmonium Region - Nils Huesken (JGU Mainz)

17:00 Hidden-heavy Hadrons in the Diabatic Born-Oppenheimer for QCD - Roberto Bruschini (Ohio State U.)

17:20 Spectroscopy of over threshold states in bottomonium and charmonium sector - Fang-Zheng Peng (TUM)

17:40 $e^+$ $e^-$ annihilation into light hadron and open charm final states at BESIII - Xiong Wang (Lanzhou University)

18:05 Spectroscopy results from ATLAS - Yue Xu (Washington U.)
Tuesday, 18 November 2025
09:00 Spectroscopy/Decay 2.1
09:00 - 10:45
Room: 500/1-001 - Main Auditorium
Contributions

09:00 Decay of heavy hadrons at LHCB and CMS - Tong Xingyu (Peking University)

09:25 Charming case of X(3872) and $\chi_{c1}$(2P) - Fulvia De Fazio (INFN Bari)

09:45 Precise determination of the properties of X(3872) and of its isovector partner $W_{c1}$ - Teng Ji (Bonn U.)

10:05 The internal structure of Tcc(3875) and X(3872) from their light-quark mass dependence - Vadim Baru (Ruhr University Bochum)

10:25 Low-lying Doubly Heavy Baryons and Associated Tetraquark Systems - Estia Eichten (FNAL)
10:45 Coffee break
Coffee break
10:45 - 11:15
Room: 500/1-001 - Main Auditorium
11:15 Spectroscopy/Decay 2.2
11:15 - 13:15
Room: 500/1-001 - Main Auditorium
Contributions

11:15 $\chi_{cJ}$ decays at BESIII - Marco Scodeggio (INFN Ferrara)

11:35 $h_c$ decays at BESIII - Liang Yan (Fudan U.)

11:55 Radiative transitions of P-wave quarkonia in lattice QCD - Damir Becirevic (LPT, Orsay)

12:15 J/$\psi$ -> $\gamma$ $\eta_c$ and $\eta_c$ -> $\gamma$ $\gamma$ - Magnus Schaaf (TUM)

12:35 P-wave charmonium leptonic widths - Jichen Pan (Peking U., CHEP)

12:55 P-wave quarkonium form factors - Melih Ozcelik (IJCLab, Orsay)
13:15 Lunch break
Lunch break
13:15 - 14:30
Room: 500/1-001 - Main Auditorium
14:30 Spectroscopy/Decay 2.3
14:30 - 16:30
Room: 500/1-001 - Main Auditorium
Contributions

14:30 The new QWG doc - Nora Brambilla (TUM)

14:50 Dipion transitions between heavy hybrids and quarkonia - Joan Soto (Universitat de Barcelona)

15:10 $\psi$(2S) decays at BESIII - Frederik Weidner (University of Münster)

15:30 $\eta_c$(1S/2S) decays at BESIII - Hang Zhou (Helmholtz Institute Mainz)

15:50 Measurements of Bc meson decays at LHCb - Wang Yuhao (Peking U.)

16:10 Spectroscopy results from CMS - Shiyi Huang (Nanjing Normal U.)
16:30 Coffee break
Coffee break
16:30 - 17:00
Room: 500/1-001 - Main Auditorium
17:00 Spectroscopy/Decay 2.4
17:00 - 19:00
Room: 500/1-001 - Main Auditorium
Contributions

17:00 Nucleon-charmonium interaction from lattice QCD - Yan Lyu (RIKEN iTHEMS Wako)

17:20 The J/ψJ/ψ-nucleon interaction mechanism: A theoretical study based on scattering length - Feng-Kun Guo (Beijing, Inst. Theor. Phys.)

17:40 Y(3S) transitions to $\chi_{b1,2}$ (2P) at Babar - Antimo Palano (INFN Bari)

18:00 Measurement of the relative phase between EM and strong decays of charmonium - Francesca De Mori (Turin U.)

18:20 Measurement of cross sections of $e^+$ $e^-$ -> $K \bar{K}$ $\psi$(3686) in the energy range up to $\sqrt s = $ 4.951 GeV - Changzheng Yuan (Beijing, Inst. High Energy Phys.)

18:40 Measurement of the $\Upsilon$ cross sections in pp collisions at 13.6 TeV - Yiyang Zhao (Tsinghua University (CN))
Wednesday, 19 November 2025
09:00 Production + New Opportunities 3.1
09:00 - 10:40
Room: 500/1-001 - Main Auditorium
Contributions

09:00 Threshold Resummation in Quarkonium Fragmentation Functions - Hee Sok Chung (Gangneung-Wonju National University)

09:20 Hadronic heavy quarkonium production in QCD factorization approach - Kazuhiro Watanabe (Tohoku University)

09:40 How well does nonrelativistic QCD factorization work at next-to-leading order? - Xiangpeng Wang (Central China Normal University)

10:00 CMS-Production Measurement of the polarizations of prompt and non-prompt $J/\psi$ and $\psi$(2S) mesons produced in pp collisions at $\sqrt s$ = 13 TeV - Carlos Lourenco (CERN)

10:20 ALICE-Production $J/\psi$ - hadron correlation in pp collisions at 13 TeV - Shreyasi Acharaya (INFN Bari)
10:40 Coffee break
Coffee break
10:40 - 11:10
Room: 500/1-001 - Main Auditorium
11:10 Production 3.2
11:10 - 12:50
Room: 500/1-001 - Main Auditorium
Contributions

11:10 High-Energy resummation effects in heavy quarkonium photoproduction - Maxim Nefedov (Ben Gurion University)

11:30 The importance of the soft scale for $J/\psi$ production in the TMD framework - Marston Copeland (Duke U.)

11:50 Shedding Light on Hadronization by Quarkonium Energy Correlator - YanQing Ma (Peking U)

12:10 Next-to-leading-order QCD corrections to double prompt $J/\psi$ hadroproduction - Xiaobo Jin (Beijing University of Chemical Technology)

12:30 Inclusive photoproduction of vector quarkonium in ultra-peripheral collisions at the LHC - Jean-Philippe Lansberg (Université Paris-Saclay (FR))
12:50 Lunch break
Lunch break
12:50 - 14:00
Room: 500/1-001 - Main Auditorium
14:00 Production 3.3
14:00 - 16:40
Room: 500/1-001 - Main Auditorium
Contributions

14:00 Prospects for quarkonium measurements in the NA60+/DiCE experiment - Roberta Arnaldi (Universita e INFN Torino (IT))

14:20 Hadroproduction Data Support Tetraquark Hypothesis for X(3872) - Wai Kin Lai (South China Normal U.)

14:40 Production of exotic states based on BOEFT - Simon Hibler (TUM)

15:00 Impact of relativistic corrections to high-PT prompt-psi production at hadron colliders - Kate Lynch (University College Dublin (IE))

15:20 About Charmonium Hadroproduction - CongFeng Qiao (Beijing, GUCAS)

15:40 Round Table: Resummation techniques at large pT and low-x hadroproduction - Chair: M. Butenschoen H. S. Chung J. Qiu (zoom) K. Watanabe M. Nefedov X. Wang Y. Q. Ma
16:40 Coffee break
Coffee break
16:40 - 17:10
Room: 500/1-001 - Main Auditorium
17:10 Beyond Standard Model/Decay 3.4
17:10 - 18:20
Room: 500/1-001 - Main Auditorium
Contributions

17:10 Axion-like particles in radiative quarkonia decays - Stefano Rigolin (INFN Padova and Univ. of Padova)

17:30 Search for new physics with charmonium decays at BESIII - Dayong Wang (Peking University (CN))

17:55 LFV in $\chi_{b1}$ decays from Belle - Swagato Banerjee (Louisville U.)
18:30 Reception

18:30 - 20:00
Room: 500/1-001 - Main Auditorium

21:30 Liasons and Convener's meeting: Liasons and Convener's meeting
Liasons and Convener's meeting
21:30 - 23:00
Room: 500/1-001 - Main Auditorium
Thursday, 20 November 2025
09:00 InMedia/Standard Model 4.1
09:00 - 10:40
Room: 500/1-001 - Main Auditorium
Contributions

09:00 Recent STAR results on quarkonium production - Jakub Ceska (Czech Technical U.)

09:20 Recent quarkonium results from fixed target at LHCb SMOG - Qiuchan Lu (Palaiseau-LLR)

09:40 Two-loop non-annihilation Hamiltonian for quarkonium - Yukinari Sumino (Tohoku University)

10:00 $\alpha_s$ from MRS potential - Andreas Kronfeld (IAS@TUM)

10:20 Tetraquarks and other bound states in resummed perturbation theory - Benoît Assi (Cincinnati U.)
10:40 Coffee break
Coffee break
10:40 - 11:10
Room: 500/1-001 - Main Auditorium
11:10 Standard Model 4.2
11:10 - 13:30
Room: 500/1-001 - Main Auditorium
Contributions

11:10 Improved Wilson loops from machine learning - Julian Mayer-Steudte (TUM)

11:30 Gluelump masses - Antonio Pineda (UAB/IFAE)

11:50 $t \bar{t}$ cross section enhancements - Laurids Jeppe (Deutsches Elektronen-Synchrotron (DE))

12:10 Updated predictions for toponium production at the LHC - Maria Vittoria Garzelli (Hamburg University (DE))

12:30 Monte Carlo simulation of toponium - Benjamin Fuks (LPTHE / Sorbonne Université)

12:50 Perturbative vs. bound-state effects in toponium - Paolo Nason (Milan Bicocca U.)

13:10 Threshold effects in $t \bar{t}$ production with ATLAS - Yoav Afik (University of Chicago (US))
13:30 Lunch break
Lunch break
13:30 - 14:30
Room: 500/1-001 - Main Auditorium
14:30 InMedia 4.3
14:30 - 16:50
Room: 500/1-001 - Main Auditorium
Contributions

14:30 Round Table: Toponium - Chair: Y. Sumino Fuks B. L. Jeppe M.V. Garzelli Y. Afik

15:30 ALICE results on collective effets on quarkonium in Pb-Pb collisions - Luca Micheletti (INFN Torino)

15:50 Recent results on charmonium production and suppression (including photoproduction) from ALICE - Minjung Kim (UC Berkeley)

16:10 Quarkonium production in small collision systems at CMS - Soohwan Lee (Korea U.)

16:30 Bottomonium width and masses from lattice NRQCD - Weiping Huang (Eötvös Loránd University (ELTE))
16:50 Coffee break
Coffee break
16:50 - 17:20
Room: 500/1-001 - Main Auditorium
17:20 InMedia 4.4
17:20 - 19:00
Room: 500/1-001 - Main Auditorium
Contributions

17:20 Unscreened potential and charmonium width from lattice QCD - Rasmus Larsen (Bielefeld University)

17:40 Lattice calculation of chromo-electric and chromo-magnetic correlators in 2+1 flavor QCD and the heavy quark diffusion coefficient - Johannes Weber (Darmstadt U.)

18:00 $J/\psi$ production in ultra-peripheral collisions - Farid Salazar (Temple U.)

18:20 $J/\psi$ production in ICEM - Ramona Vogt (LLNL and UC Davis)

18:40 Exclusive quarkonia production in ultraperipheral PbPb collisions in CMS - Cristian Baldenegro (MIT)
Friday, 21 November 2025
08:40 InMedia 5.1
08:40 - 10:50
Room: 500/1-001 - Main Auditorium
Contributions

08:40 EPIC - Michael Murray (The University of Kansas (US))

09:00 Toward lattice QCD calculation of quarkonium transport coefficients - Viljami Leino (Southern Denmark U.)

09:20 NLO perturbative calculation of quarkonium EE and BB correlator and $\kappa$ and $\gamma$ at NLO - Panayiotis Panayiotou (Technical University of Munich)

09:40 Quarkonium production in proton proton and nuclear collisions at LHCb - Lidia Carcedo Salgado (Universidade de Santiago de Compostela)

10:10 PHENIX results and sPHENIX perspectives on quarkonium production - Hugo Pereira Da Costa (LANL)

10:30 Bottomonium thermalization and master equations for quarkonium evolution - Tom Magorsch (TUM)
10:50 Coffee break
Coffee break
10:50 - 11:20
Room: 500/1-001 - Main Auditorium
11:20 InMedia/Automated Calculations 5.2
11:20 - 13:15
Room: 500/1-001 - Main Auditorium
Contributions

11:20 Hefty overview - Ramona Vogt (LLNL and UC Davis)

11:40 In-medium spin transport of heavy quarkonium - Shuo Fang (TUM)

12:00 Applications of AmpRed to Heavy Quarkonium Calculations - Wen Chen (South China Normal University)

12:25 Automated Event Generation for Quarkonium and Leptonium Production in MadGraph5_aMC@NLO - Lukas Simon (LPTHE Paris)

12:45 Central Exclusive Quarkonium Production in STARlight - Minjung Kim (UC Berkeley)
13:15 Lunch break
Lunch break
13:15 - 14:15
Room: 500/1-001 - Main Auditorium
14:15 Session 5.3
14:15 - 16:25
Room: 500/1-001 - Main Auditorium
Contributions

14:15 Quarkonium Parton Shower in Herwig7 - Aidin Masouminia (Durham U.)

14:40 Simulations in Pythia8 - Naomi Cooke (Glasgow U.)

15:00 Hybrids spin dependent and mixing potentials - Marc Wagner (Frankfurt U.)

15:20 Electromagnetic form factors and structure of the $T_{bb}$ tetraquark - Sara Collins (Regensburg U.)

15:40 Quarkonium and Exotics in the QCD at FAIR initiative - Frank Nerling (GSI)

16:00 Status of the Super-tau charm factory and EicC - Yutie Liang (Institute of Modern Physics, CAS)
16:25 Coffee break
Coffee break
16:25 - 16:55
Room: 500/1-001 - Main Auditorium
16:55 New Opportunities 5.4
16:55 - 17:15
Room: 500/1-001 - Main Auditorium
Contributions

16:55 The LHCb Upgrade and its impact on quarkonium measurements - Mengzhen Wang (CERN)
17:15 QWG 2025 closeout

17:15 - 17:35
Room: 500/1-001 - Main Auditorium