EIC-Asia Workshop on QCD and Hadron Structure
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
The electron-ion collider will significantly enhance our understanding of hadron structure. This workshop aims to bring together experts in experiments, phenomenology and lattice calculations that are relevant to this subject. In addition to invited presentations, we may be able to accommodate a few contributed talks with priority given to junior reseachers.
Registration deadline: The 20th of April 2026
Abstract submission deadline: The 14th of April 2026
Topics include
Lattice QCD and hadron structure
Probing meson and nucleon structures at EIC
Invited speakers include
Canstantia Alexandrou (The Cyprus Institute); remote
Wen-Chen Chang (Academia Sinica)
Luigi Del Debbio (U. of Edinburgh)
Tanja Horn (Catholic U. America)
Zhongbo Kang (UCLA); remote
Yang Li (USTC); remote
Tianbo Liu (Shandong U.); remote
Valentin Moos (National Yang Ming Chiao Tung U.)
Michael Murray (U. of Kansas); remote
Robert Perry (MIT)
Alberto Ramos (U. of Valencia)
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08:30
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09:00
Registration 30m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
09:00
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11:00
Session: Session 1 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: C.-J. David Lin (Institute of Physics, National Yang Ming Chiao Tung University)- 09:00
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09:40
Energy Correlators and TMD Structure (remote) 40mSpeaker: Prof. Zhongbo Kang (University of California - Los Angeles)
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10:20
Quantum entanglement between partons in strongly coupled quantum field theories (remote) 40m
In this talk, we discuss the quantum entanglement between partons using non-perturbative light-front Hamiltonian methods. By constructing reduced density matrices from hadronic light-front wave functions, we compute von Neumann entropy, mutual information, and linear entropy directly for each parton species. Starting from a simple scalar theory in 3+1D in the strong-coupling regime, we show that the entanglement entropy is directly linked to the Shannon entropy of the transverse momentum dependent parton distributions (TMDs) in the quenched framework. Conversely, the unquenched theory reveals non-classical correlations where entanglement entropy transcends classical parton distribution probabilities. This work establishes entanglement as a fundamental probe of non-perturbative dynamics, providing a roadmap for applications to QCD bound states and future collider phenomenology. Finally, I will also discuss extensions to QCD bound states.
Speaker: Yang Li (University of Science and Technology of China)
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11:00
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11:05
Group photo Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
11:05
→
11:20
Coffee 15m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
11:20
→
13:00
Session: Session 2 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Luigi Del Debbio-
11:20
High-precision calculation of the Quark–Gluon coupling from Lattice QCD 40mSpeaker: Alberto Ramos
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12:00
TMD physics from lattice QCD (remote) 40m
Understanding the origin of the proton’s mass and spin, as well as the mechanism of color confinement, lies at the heart of the scientific mission of future collider experiments such as the Electron-Ion Collider at Brookhaven National Laboratory. Over the past decade, lattice QCD has emerged as a powerful first-principles tool for studying parton physics, particularly through the Large Momentum Effective Theory (LaMET), which provides a systematic framework for calculating the PDFs, GPDs, and TMDs from the lattice. In this talk, I will review recent progress in lattice calculations of multi-dimensional parton structure and discuss their impact on, and interplay with, current and future experiments.
Speaker: Dr Yong Zhao (Argonne National Laboratory) -
12:40
Lattice extraction of the Collins-Soper kernel via auxiliary fields 20m
The Collins-Soper (CS) kernel may be obtained through the TMD soft function by formulating the Wilson line in terms of 1-dimensional auxiliary fermion fields on the lattice. Our computation takes place in the region of the lattice that corresponds to the “spacelike” region in Minkowski space, i.e., Collins' scheme. By computing the "double ratio"; we are able to obtain a formula for directly calculating the CS kernel. The matching of our result to Minkowski space is achieved through the mapping of the complex auxiliary field directional vector to the Wilson line rapidity. We present a preliminary extraction of the CS kernel using the "double ratio", and discuss the methodology employed.
Speaker: Wayne Morris (NYCU)
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11:20
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14:00
Lunch 1h Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
14:00
→
16:00
Session: Session 3 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Alberto Ramos-
14:00
Hadron structure with lattice QCD and connection to EIC (remote) 40mSpeaker: Constantia Alexandrou
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14:40
Calculating the low Mellin moments of the pion light-cone distribution amplitude using the HOPE method 40mSpeaker: Robert Perry
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15:20
A New Approach to Hadron Structure from Lattice QCD: Gradient Flow in the EIC Era (remote) 40mSpeaker: Andrea Shindler
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14:00
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16:00
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16:30
Coffee 30m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
16:30
→
17:50
Session: Session 4 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Po-Ju Lin (National Central University)-
16:30
Gluon Polarimetry with Energy-Energy Correlators (remote) 40mSpeaker: Jian Zhou
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17:10
Transition GPDs and nondiagonal DVCS at the EIC 40mSpeaker: Hyeon-Dong Son (Inha University)
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16:30
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09:00
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08:55
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Announcement 5m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
09:00
→
11:00
Session: Session 5 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Jen-Chieh Peng (University of Illinois at Urbana-Champaign)-
09:00
Insights into the Emergence of Hadron Mass and Structure 40m
Visible matter is characterised by a single mass scale, i.e., the
proton mass. The proton’s existence and structure are supposed to be
described by QCD; yet, absent Higgs boson couplings, chromodynamics is
scale-invariant. So, if the Standard Model is truly a part of the theory of Nature, then the proton mass is an emergent feature of QCD; and emergent hadron mass (EHM) must provide the basic link between theory and observation. This presentation will sketch recent progress in elucidating the character of EHM. Special emphasis will given to the three pillars of EHM namely, the momentum-dependent gluon mass, QCD's process-independent effective charge, and the running quark mass; their role in stabilising strong interaction theory; and their measurable expressions in a diverse array of observables.Speaker: Craig Roberts -
09:40
Nucleon transverse momentum dependent parton distributions and the EicC (remote) 40mSpeaker: Tianbo Liu
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10:20
Recent TMD measurements at STAR and the connection to EIC (remote) 40mSpeaker: Qinghua Xu
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09:00
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11:00
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11:20
Coffee 20m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
11:20
→
13:00
Session: Session 6 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Wen-Chen Chang (Institute of Physics, Academia Sinica)-
11:20
Recent Progress of Nucleon Structure Study at Jlab (remote) 40mSpeaker: Zhihong Ye
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12:00
Near-Threshold Photoproduction as a Probe of the Nucleon Gravitational Structure (remote) 20m
The energy–momentum tensor (EMT) provides a fundamental, gauge-invariant description of the distribution of energy, momentum, and internal forces within hadrons. Its matrix elements define the gravitational form factors (GFFs), which encode key aspects of nucleon structure, including mass decomposition, spatial distributions of pressure and shear forces, and the angular momentum carried by quarks and gluons. In this talk, I will present recent phenomenological results of gluonic GFFs and their application to the near-threshold photoproduction of $J/\psi$, with predictions relevant to the $J/\psi-007$ and GlueX experiments at Jefferson Lab and their implications at EIC within the generalized parton distribution framework.
Speaker: Dr Bheemsehan Gurjar (University of Science and Technology of China) -
12:20
Forward baryon production and meson structure in ep collisions 40mSpeaker: Yuji Yamazaki
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11:20
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13:00
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14:00
Lunch 1h Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
14:00
→
16:00
Session: Session 7 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Yuji Yamazaki- 14:00
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14:40
PION AND KAON STRUCTURE MEASUREMENTS AT EIC AND JLAB 40m
Pion and kaons, the lightest bound states in the hadron spectrum, are essential to understand the strong interaction in the non-perturbative domain of QCD. They are connected to the Goldstone modes of dynamical chiral symmetry breaking, the mechanism thought to generate nearly all hadron mass in the visible universe. Pion and kaons thus provide a novel perspective on the emergent hadron mass and confinement mechanisms in QCD. The distribution of the fundamental constituents, the quarks and gluons, is expected to be different in pions, kaons, and nucleons. However, experimental data are sparse. As a result, there has been persistent doubt about the behavior of the pion's valence quark structure function at large Bjorken-x and virtually nothing is known about the contribution of gluons. Experiments at 12 GeV JLab using the Sullivan process may provide insight. The Electron-Ion Collider with an acceptance optimized for forward physics could vastly extend the kinematic range of pion and kaon charts. This would allow for measurements testing if the origin of mass is encoded in the differences of gluons in pions, kaons, and nucleons, and measurements that could serve as a test of assumptions used in the extraction of structure functions and the pion and kaon form factors. Measurements at an EIC would also allow to explore the effect of gluons at high x. In this talk we will discuss new results from JLab and the prospects of such measurements at EIC.
Speaker: Prof. Tanja Horn (CUA) -
15:20
Meson and Nucleon Structure Measurements at the EIC (remote) 40mSpeaker: Stephen Kay (University of York)
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16:00
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16:30
Coffee 30m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
16:30
→
17:30
Session: Session 8 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Tanja Horn (CUA)-
16:30
Pion and Kaon PDFs 40mSpeaker: Wen-Chen Chang (Institute of Physics, Academia Sinica)
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17:10
Parton physics from a heavy-quark operator product expansion: Dynamical lattice QCD calculation of moments of the kaon light-cone distribution amplitude 20m
The light-cone distribution amplitude (LCDA) is a fundamental non-perturbative quantity for understanding hadron structure and exclusive scattering processes. We report on our calculation of the pion and kaon LCDAs using the heavy-quark operator product expansion (HOPE) framework. This method employs an OPE analysis of hadronic amplitudes through the inclusion of a fictitious valence heavy quark. In these talk, we report progress on the determination of the first three nontrivial Mellin moments of the kaon LCDAs from dynamical lattice QCD calculations, thereby demonstrating the feasibility of the HOPE method for accessing higher moments.
Speaker: Sheng Pin Chang (Institute of Physics National Yang Ming Chiao Tung University)
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19:00
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21:00
Workshop banquet 榮榮園浙寧餐廳 https://maps.app.goo.gl/7Bqj8DHpUWwXgwZf8: Rong Rong Yuan Restaurant
https://share.google/uXHNhc6Kjz8vbwmig
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08:55
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09:00
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10:50
Session: Session 9 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Taku Gunji- 09:00
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09:20
Physics of the ZDC at ePIC and the LHC (remote) 40mSpeaker: Michael Murray (University of Kansas)
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10:00
Status of the HGCAL for the ePIC ZDC (remote) 25mSpeaker: Sean Preins (UC Riverside)
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10:25
Summary of the PDR Review for the ePIC ZDC EMCAL 25mSpeaker: Chia Ming Kuo (National Central University, Taiwan)
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10:50
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11:20
Coffee 30m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
11:20
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12:20
Session: Session 10 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Chia Ming Kuo (National Central University, Taiwan)-
11:20
Plans for the upcoming ZDC EMCAL beam test and open discussion 1hSpeaker: Po-Ju Lin (National Central University)
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11:20
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12:20
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13:30
Lunch 1h 10m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
13:30
→
15:30
Session: Session 11 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Kentaro Kawade (Shinshu University)- 13:30
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13:55
Status of ZDC simulation studies in Korea (remote) 25mSpeaker: Saehanseul Oh (Sejong University)
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14:20
Status of ZDC simulation studies in Taiwan 20mSpeaker: Chia-Yu Hsieh (Academia Sinica, Taiwan)
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14:40
Status of the BTOF 25mSpeaker: Satoshi Yano (Hiroshima University)
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15:05
Status of the Barrel Imaging Calorimeter (BIC) for the ePIC Experiment 25m
We present an overview of the Barrel Imaging Calorimeter (BIC) for the ePIC experiment at the EIC, including its physics motivation and detector concept. Particular emphasis will be given to recent R&D efforts, with a focus on contributions from the Korean group. Current prototype developments and future plans will also be briefly discussed.
Speaker: Shinhyung Kim (Kyungpook National University)
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15:30
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16:00
Coffee 30m Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.) -
16:00
→
17:25
Session: Session 12 Meeting Room, 5F, New Phys Bldg
Meeting Room, 5F, New Phys Bldg
Institute of Physics, Academia Sinica
No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)Convener: Yuji Goto (RIKEN)-
16:00
Recent Progress on the ZDC at Shinshu University 20mSpeaker: Kentaro Kawade (Shinshu University)
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16:20
Prospect for Kalman-Based Reconstruction in the EIC ZDC 15mSpeakers: Marco Meyer-Conde (Tokyo City University), Marco Meyer-Conde (Tokyo City University)
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16:55
ZDC EMCAL Electronics: Open Discussion 30mSpeaker: Yuji Goto (RIKEN)
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10:50