Name: eeFACT 2025 - 70th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e– Colliders
Start: 2025-03-02T15:00:00+09:00
End: 2025-03-07T18:00:00+09:00
Location: EPOCHAL

eeFACT 2025 - 70th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e– Colliders

from Sunday, March 2, 2025 (3:00 PM) to Friday, March 7, 2025 (6:00 PM)

Monday, February 24, 2025
Tuesday, February 25, 2025
Wednesday, February 26, 2025
Thursday, February 27, 2025
Friday, February 28, 2025
Saturday, March 1, 2025
Sunday, March 2, 2025

3:00 PM Registration
Registration
3:00 PM - 6:00 PM
Room: 301

Monday, March 3, 2025

8:20 AM Registration & Help Desk
Registration & Help Desk
8:20 AM - 6:00 PM
Room: 301
9:00 AM Welcome Address - Tadashi Koseki (High Energy Accelerator Research Organization)
Welcome Address
- Tadashi Koseki (High Energy Accelerator Research Organization)
9:00 AM - 9:10 AM
Room: 300
9:10 AM Present and future colliders
9:10 AM - 1:00 PM
Room: 300
Contributions

9:10 AM DAFNE Recent Actiivity - Catia Milardi (Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati)

9:40 AM BEPC-II and CEPC - Jie Gao (Chinese Academy of Sciences)

10:10 AM Project status and R&D efforts for Super Tau-Charm Facility - Jingyu Tang (University of Science and Technology of China)

11:00 AM Recent Performance of SuperKEKB - Yukiyoshi Ohnishi (High Energy Accelerator Research Organization)

11:30 AM LHC/HL-LHC - Oliver Brüning (European Organization for Nuclear Research)

12:00 PM The status of the Future Circular electron-positron Collider - Jacqueline Keintzel (European Organization for Nuclear Research)

12:30 PM Electron-Ion Collider Project Status Updates - Andrei Seryi (Thomas Jefferson National Accelerator Facility)
1:00 PM Lunch
Lunch
1:00 PM - 2:20 PM
Room: 300
2:20 PM Present and future colliders
2:20 PM - 3:20 PM
Room: 300
Contributions

2:20 PM ILC/CLIC/C3/HALHF/ALEGRO - Angeles Faus-Golfe (Laboratoire de Physique des 2 Infinis Irène Joliot-Curie)

2:50 PM Collider Future Direction - Frank Zimmermann (European Organization for Nuclear Research)
3:20 PM Coffee Break
Coffee Break
3:20 PM - 3:40 PM
Room: 300
3:40 PM Optics & Beam Dynamics
3:40 PM - 6:40 PM
Room: 300
Contributions

3:40 PM Lattice and beam dynamics studies for a compact Z-factory e+e- collider - Ivan Koop (Russian Academy of Sciences)

4:10 PM Beam dynamics studies to address EIC challenges. - Christoph Montag (Brookhaven National Laboratory)

4:40 PM Consistent representation of lattices between optics code for FCC-ee, SuperKEKB, and more. - John Salvesen (European Organization for Nuclear Research)

5:10 PM Physics design of the STCF collider rings. - Ye Zou (University of Science and Technology of China)

5:40 PM Optics correction for the electron positron future circular collider: nominal and ballistic optics - Elaf Musa (Deutsches Elektronen-Synchrotron DESY)
Beam Instrumentation
3:40 PM - 6:40 PM
Room: 304
Contributions

3:40 PM The CEPC beam position monitoring system - Yanfeng Sui (Institute of High Energy Physics)

4:10 PM Cavity based beam diagnostics for the STCF injector - Qian Wang (University of Science and Technology of China)

4:40 PM Effect of Bunch Feedback system to the luminosity of e+e- collider - Makoto Tobiyama (High Energy Accelerator Research Organization)

5:10 PM Nine Years of Optical beam diagnostic system development at SuperKEKB - Toshiyuki Mitsuhashi (High Energy Accelerator Research Organization)

5:40 PM Status and outlook of transverse profile measurement for FCCee - Daniele Butti (European Organization for Nuclear Research)

6:10 PM Cherenkov diffraction radiation studies for longitudinal diagnostics - Kacper Lasocha (European Organization for Nuclear Research)
6:40 PM Welcome Cocktail
Welcome Cocktail
6:40 PM - 8:30 PM
Room: 102
Tuesday, March 4, 2025
9:00 AM Physics
9:00 AM - 12:50 PM
Room: 304
Contributions

9:00 AM Recent B physics results from Belle II - Christoph Schwanda (Austrian Academy of Sciences)

9:30 AM Charm physics studies at BESIII, Belle (II) and STCF - Yu Zhang (University of South China)

10:00 AM Higgs physics at e+e- colliders - Manqi Ruan (Institute of High Energy Physics)

10:50 AM EW and QCD physics at e+e- colliders - Fabrizio Palla (Istituto Nazionale di Fisica Nucleare)

11:20 AM top physics at e+e- colliders - Adrian Irles (Instituto de Física Corpuscular)

11:50 AM Low mass new particle searches at e+e- collider experiments - enrico graziani (Istituto Nazionale di Fisica Nucleare)

12:20 PM High mass searches & global interpretations - Natsumi Nagata (The University of Tokyo)
Injector, Injection
9:00 AM - 12:50 PM
Room: 300
Contributions

9:00 AM SuperKEKB injector and injection (status and progress ) - Naoko Iida (High Energy Accelerator Research Organization)

9:30 AM FCC-ee injector: Single and multibunch instability - Andrea Latina (European Organization for Nuclear Research)

10:00 AM Study for the CEPC injector and injections - Cai Meng (Chinese Academy of Sciences)

10:50 AM STCF injector and positron source design - Ailin Zhang (University of Science and Technology of China)

11:20 AM Summary of the Workshop AHIPS-2024 - Iryna Chaikovska (Université Paris-Saclay, CNRS/IN2P3, IJCLab)

11:50 AM Overview of positron sources and development for ILC - Yoshinori Enomoto (High Energy Accelerator Research Organization)

12:20 PM Requirements for electron sources for lepton colliders - Thomas Lucas (Paul Scherrer Institute)
12:50 PM Group Photo
Group Photo
12:50 PM - 1:00 PM

1:00 PM Lunch
Lunch
1:00 PM - 2:20 PM
2:20 PM Magnets, IR, Alignment
2:20 PM - 3:50 PM
Room: 304
Contributions

2:20 PM Progress of the IR superconducting magnets at STCF - Wenbin Ma (High Magnetic Field Laboratory)

2:50 PM Development of the CCT superconducting magnets for the STCF interaction region - Shaoqing Wei (Institute of Plasma Physics)

3:20 PM SuperKEKB IR upgrade idea - XUDONG WANG (High Energy Accelerator Research Organization)
Vacuum
2:20 PM - 3:50 PM
Room: 300
Contributions

2:20 PM CEPC Vacuum system development progress - Yongsheng Ma (Institute of High Energy Physics)

2:50 PM Two instabilities related to vacuum chamber of accelerators - Oleg Malyshev (Science and Technology Facilities Council)

3:20 PM EIC vacuum system - Charles Hetzel (Brookhaven National Laboratory)
3:50 PM Coffee Break
Coffee Break
3:50 PM - 4:10 PM
4:10 PM Magnets, IR, Alignment
4:10 PM - 6:10 PM
Room: 304
Contributions

4:10 PM EIC Interaction Region Design and Magnets - Christoph Montag (Brookhaven National Laboratory)

4:40 PM A novel spin rotator concept for longitudinally polarized beam for Chiral Belle at SuperKEKB - Brett Parker (Brookhaven National Laboratory)

5:10 PM Experiences with SuperKEKB IR alignment & installation - Mika Masuzawa (High Energy Accelerator Research Organization)
Vacuum
4:10 PM - 5:10 PM
Room: 300
Contributions

4:10 PM Development of low SEY coating in SuperKEKB - Mu-Lee Yao (High Energy Accelerator Research Organization)

4:40 PM Status report on the SuperKEKB vacuum system - Kyo Shibata (High Energy Accelerator Research Organization)
5:10 PM Machine Detector Interface
5:10 PM - 6:10 PM
Room: 300
Contributions

5:10 PM Loss Monitor Group's Activities for Understanding the SBL Mechanism at SuperKEKB/Belle II - Keisuke Yoshihara (University of Hawaii System)

5:40 PM Investigation on injection-related beam loss at SuperKEKB - Meng Li (Chinese Academy of Sciences)
Wednesday, March 5, 2025
9:00 AM Magnets, IR, Alignment
9:00 AM - 10:00 AM
Room: 304
Contributions

9:00 AM Alignment plans for FCC-ee - Helene Mainaud Durand (European Organization for Nuclear Research)

9:30 AM First view at alignment tolerances in the FCC-ee Interaction Region - Satya Sai Jagabathuni (European Organization for Nuclear Research)
Machine Detector Interface
9:00 AM - 10:30 AM
Room: 300
Contributions

9:00 AM SuperKEKB/Belle II background studies update - Qingyuan Liu (University of Hawaii System)

9:30 AM Overview of the CEPC MDI - Haoyu Shi (Chinese Academy of Sciences)

10:00 AM Detector backgrounds at FCC-ee - Andrea Ciarma (Istituto Nazionale di Fisica Nucleare)
10:00 AM Cryogenics, Infrastructures
10:00 AM - 10:30 AM
Room: 304
Contributions

10:00 AM Ongoing accelerator cryogenics in China - Rui Ge (Institute of High Energy Physics)
10:30 AM Coffee Break
Coffee Break
10:30 AM - 10:50 AM
10:50 AM Cryogenics, Infrastructures
10:50 AM - 12:20 PM
Room: 304
Contributions

10:50 AM Cryogenics system for ILC - Kota Nakanishi (High Energy Accelerator Research Organization)

11:20 AM Conventional facilities of CEPC - Jinshu HUANG (Institute of High Energy Physics)

11:50 AM Research Activities Aimed at Decarbonizing the Life Cycle of Accelerator Facilities - Masakazu Yoshioka (High Energy Accelerator Research Organization)
Machine Detector Interface
10:50 AM - 12:50 PM
Room: 300
Contributions

10:50 AM Optics design of the interaction region for the STCF - Linhao Zhang (University of Science and Technology of China)

11:20 AM Recent Advances in Beam-Related Background Studies at the Electron-Ion Collider - Andrii Natochii (Brookhaven National Laboratory)

11:50 AM Overview of the FCC-ee MDI - Manuela Boscolo (Istituto Nazionale di Fisica Nucleare)

12:20 PM Polarimeter and small angle detector issues - Michael Sullivan (SLAC National Accelerator Laboratory)
12:20 PM Lunch
Lunch
12:20 PM - 1:50 PM
Room: 304

12:50 PM Lunch
Lunch
12:50 PM - 1:50 PM
Room: 300

1:50 PM Laboratory Tour
Laboratory Tour
1:50 PM - 6:20 PM
Thursday, March 6, 2025
9:00 AM Cryogenics, Infrastructures
9:00 AM - 9:30 AM
Room: 304
Contributions

9:00 AM The European LDG Working Group on Sustainability Assessment of Future Accelerators - Maxim Titov (Commissariat à l'Energie Atomique)
Polarization, Energy calibration, Monochromatization
9:00 AM - 10:30 AM
Room: 300
Contributions

9:00 AM CEPC polarization status - Zhe Duan (Institute of High Energy Physics)

9:30 AM Lessons from VEPP-4M polarization studies - Ivan Nikolaev (Russian Academy of Sciences)

10:00 AM Spin Polarization Simulations for the FCC-ee - Yi Wu (École Polytechnique Fédérale de Lausanne)
9:30 AM RF
9:30 AM - 10:30 AM
Room: 304
Contributions

9:30 AM High current-related issues in KEKB/SuperKEKB RF operation - Tetsuya Kobayashi (High Energy Accelerator Research Organization)

10:00 AM Challenges in RF systems for Energy Recovering Linacs - Walid Kaabi (Université Paris-Saclay, CNRS/IN2P3, IJCLab)
10:30 AM Coffee Break
Coffee Break
10:30 AM - 10:50 AM
10:50 AM RF
10:50 AM - 12:50 PM
Room: 304
Contributions

10:50 AM Status and perspectives of RF systems for Hi-Lumi LHC - Rama Calaga (European Organization for Nuclear Research)

11:20 AM Improving Beam Quality and Reliability through Low-Level RF Control in Superconducting Accelerators - Feng Qiu (Institute of Modern Physics, Chinese Academy of Sciences)

11:50 AM Design and prototyping of a HOM-damping TM020-mode RF cavity for the STCF collider rings - Yelong Wei (University of Science and Technology of China)

12:20 PM ILC RF system challenges and status of high-gradient SC cavities - Mathieu Omet (High Energy Accelerator Research Organization)
Polarization, Energy calibration, Monochromatization
10:50 AM - 12:50 PM
Room: 300
Contributions

10:50 AM The FCC-ee polarimeter - Robert Kieffer (European Organization for Nuclear Research) Robert Kieffer (European Organization for Nuclear Research)

11:20 AM Status of polarized beam operation at SuperKEKB - J. Roney (Victoria University)

11:50 AM Polarization status at the EIC - Vahid Ranjbar (Brookhaven National Laboratory)

12:20 PM Advances in the Development of the Free Spin Precession Method - Ivan Koop (Budker Institute of Nuclear Physics)
12:50 PM Lunch
Lunch
12:50 PM - 2:20 PM
2:20 PM RF
2:20 PM - 3:50 PM
Room: 304
Contributions

2:20 PM RF systems for circular Higgs factory projects - Jiyuan Zhai (Institute of High Energy Physics)

2:50 PM RF systems for a future Muon collider - Dario Giove (Istituto Nazionale di Fisica Nucleare)

3:20 PM High Efficiency klystrons for future colliders - Jiyuan Zhai (Institute of High Energy Physics)
Polarization, Energy calibration, Monochromatization
2:20 PM - 2:50 PM
Room: 300
Contributions

2:20 PM Calibrating the energy at the Future Circular electron-positron Collider - Jacqueline Keintzel (European Organization for Nuclear Research)
2:50 PM Beam-beam & Instabilities
2:50 PM - 3:50 PM
Room: 300
Contributions

2:50 PM Beam-beam simulation studies for the Electron-Ion Collider - Yun Luo (Brookhaven National Laboratory)

3:20 PM Impedance budget and single-bunch collective effects in the SuperKEKB low energy ring with a new collimation system after the first long-term shutdown - Takuya Ishibashi (High Energy Accelerator Research Organization)
3:50 PM Coffee Break
Coffee Break
3:50 PM - 4:10 PM
4:10 PM Machine learning and automatic tuning
4:10 PM - 5:40 PM
Room: 304
Contributions

4:10 PM Luminosity tuning with ML in FCCee - Vaibhavi Gawas (European Organization for Nuclear Research)

4:40 PM Using RL to maximize luminosity at BEPCII - Jiaqi Fan (Chinese Academy of Sciences)

5:10 PM AI for FCCee - what will it bring and what needs to be prepared - Verena Kain (European Organization for Nuclear Research)
Beam-beam & Instabilities
4:10 PM - 5:40 PM
Room: 300
Contributions

4:10 PM Impedance Budget and Single-Bunch Instabilities at FCC-ee - Dora Gibellieri (European Organization for Nuclear Research)

4:40 PM Impedance and beam-beam effects for FCC-ee - Roxana SOOS (European Organization for Nuclear Research)

5:10 PM Operation overview and luminosity integral achievement at VEPP-2000 collider - Yury Rogovsky (Russian Academy of Sciences)
7:00 PM Banquet Dinner
Banquet Dinner
7:00 PM - 9:00 PM
Friday, March 7, 2025
9:00 AM Machine learning and automatic tuning
9:00 AM - 10:30 AM
Room: 304
Contributions

9:00 AM Advanced ML at APS - Nikita Kuklev (Fermi National Accelerator Laboratory)

9:30 AM FCC-ee Interaction Point optics tuning - Satya Sai Jagabathuni (European Organization for Nuclear Research)

10:00 AM DAMA design optimization for light sources and implications for FCCee - Daniel Ratner (SLAC National Accelerator Laboratory)
Beam-beam & Instabilities
9:00 AM - 10:30 AM
Room: 300
Contributions

9:00 AM Single beam collective effects at CEPC - Na Wang (University of Chinese Academy of Sciences)

9:30 AM Beam-beam effects in the STCF collider - Sangya Li (University of Science and Technology of China)

10:00 AM Beam-Beam Effects in SuperKEKB - Kazuhito Ohmi (High Energy Accelerator Research Organization)
10:30 AM Coffee Break
Coffee Break
10:30 AM - 10:50 AM
10:50 AM Machine learning and automatic tuning
10:50 AM - 12:20 PM
Room: 304
Contributions

10:50 AM Machine learning experience at SuperKEKB - Gaku Mitsuka (High Energy Accelerator Research Organization)

11:20 AM ML techniques for polarization improvements in RHIC and EIC - Eiad Hamwi (Cornell University)

11:50 AM Status and limitations of SuperKEKB optics tuning - Yukiyoshi Ohnishi (High Energy Accelerator Research Organization)
Beam-beam & Instabilities
10:50 AM - 12:20 PM
Room: 300
Contributions

10:50 AM Impact of lattice errors and correction with beam-beam - Leon Van Riesen-Haupt (European Organization for Nuclear Research) Léon van Riesen-Haupt (École Polytechnique Fédérale de Lausanne)

11:20 AM Beam-beam Effects at CEPC - Yuan Zhang (Institute of High Energy Physics)

11:50 AM Beam-Ion Instability in the EIC electron storage ring - Boris Podobedov (Brookhaven National Laboratory)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
2:00 PM Special Session: Special Sesson on Combined Effects
Special Sesson on Combined Effects
2:00 PM - 3:00 PM
Room: 300
Contributions

2:00 PM Interplay of different beam dynamics effects in DAFNE - Catia Milardi (Istituto Nazionale di Fisica Nucleare)

2:15 PM Simulated physical processes in Bmad - Eiad Hamwi (Cornell University (CLASSE))

2:30 PM Highlights from the WG5 MDI session - Manuela Boscolo (Istituto Nazionale di Fisica Nucleare)

2:45 PM Remarks on combined effects - Demin Zhou (High Energy Accelerator Research Organization)
3:00 PM Special Session 2
3:00 PM - 4:00 PM
Room: 300
Contributions

3:00 PM Sudden Beam Loss (SBL) Events at SuperKEKB, Observations and Measures - Kyo Shibata (High Energy Accelerator Research Organization)

3:20 PM Simulations on SBL - Kazuhito Ohmi (High Energy Accelerator Research Organization)

3:40 PM Discussions on SBL
4:00 PM Coffee Break
Coffee Break
4:00 PM - 4:20 PM
Room: 300
4:20 PM Summary
4:20 PM - 5:20 PM
Room: 300
Contributions

4:20 PM Summary of the physics session - Akimasa Ishikawa (High Energy Accelerator Research Organization)

4:30 PM Summary of the beam physics-related working groups - Rogelio Tomas (European Organization for Nuclear Research) Xavier Buffat (European Organization for Nuclear Research)

4:55 PM Summary of the hardware-related working groups - Kazuro Furukawa (High Energy Accelerator Research Organization)