Joint workshop of TYL/FJPPN and FKPPN 2026

18 May 2026, 09:20 → 21 May 2026, 16:30 Asia/Tokyo

ACT CITY HAMAMATSU Congress Center

We are pleased to invite you to the Joint Workshop of TYL/FJPPN and FKPPN, to be held in Hamamatsu, Japan. 

• Date: May 18-21, 2026
• Place: ACT CITY HAMAMATSU Congress Center

The workshop consists of keynote talks, reports from institutions, award ceremonies, and project reports. The last day, May 21, is dedicated for an optional tour to the factory of Hamamatsu Photonics etc.

Keynote talks include the one from Hamamatsu Photonics to cover its technical development of photo-sensors.

This year, 2026, marks the 20th anniversary of France-Japan Particle Physics Laboratory/Network, and we plan to have a special session to celebrate. 

The official hotel will be Hotel Crown Palais Hamamatsu, which is right across the street from the conference venue. Participants are recommended to book through our webpage. The charge will be announced in the registration page.

Excursion is planned on Thursday, May 21st. We visit a factory of Hamamatsu Photonics and the YAMAHA museum, and return to the Hamamatsu station at around 4:30pm. (The slots for the excursion are all booked as of Apr 23.)

The registration is open until April 17 extended to Apr 24, but the hotels and excursion are arranged in a first-come-first-served principle. The registration fee is 10,000 JPY, plus 3,000 JPY for those who join the optional excursion.

 

Organizers: Guillaume Batigne (SUBATECH), Marc Besancon (IRFU), Shoji Hashimoto (KEK, chair), Youngman Kim (IBS), Emi Kou (IJClab), Francois Le Diberder (IJClab)

Hosted by: High Energy Accelerator Research Organization (KEK)

Supported by: Japan Society for the Promotion of Science (JSPS)  , Hamamatsu Photonics K.K.

 

Monday, 18 May

09:30 → 09:40 Opening

Convener: Shoji HASHIMOTO

09:40 → 10:40 Award ceremony: Toshiko Yuasa Award

Convener: Marc Besancon

09:40 [Toshiko Yuasa Award] Probing the QCD with Leptons: Mysteries of Mass Generation

Speaker: Megumi Naruki (Kyoto University)

20260518_TYLFJPPN_naruki.pdf

FJ_FK_award_Marc_Besancon_2026_F_award.pdf

10:10 [Toshiko Yuasa Award]

Speaker: Marie Tani (Kyoto University)

20260518-TYL FJPPN_FKPPN2026-final-MTani.pdf

11:10 → 12:30 Collaboration projects: Plenary I

Convener: Emi Kou

11:10 [FJPPN HEP_16] 2-fermion production at Higgs Factories

Speaker: Roman Poeschl (CNRS/IN2P3/IJCLab)

talk180526.pdf

11:30 [FJPPN D_RD_42] Development of highly-granular silicon-tungsten calorimeter for circular and linear Higgs factories

Speaker: Taikan Suehara

260518-fjppn-siwecal-suehara.pdf

11:50 [FJPPN A_RD_33] Lumi opt - FLC: ATF2 experiments

Speaker: Toshiyuki Okugi (KEK)

ATF2_okugi_20260518.pdf

12:10 [FJPPN D_RD_34] Field emitter array In XEnon Detector

Speaker: Romain Gaior (ILANCE / LPNHE)

document.pdf

14:00 → 15:40 Collaboration projects: Parallel Ia

Convener: Mathieu Omet

14:00 [FJPPN HEP_18, remote] Beyond the SM physics probed with Higgs boson pair production in the ATLAS experiment

Speaker: Tatsuya Masubuchi (The University of Osaka)

FJPPL_workshop2026.pdf

14:20 [FJPPN HAD_07, remote] Quarkyonic Matter in and out of equilibrium

Speaker: Yuki Fujimoto (Niigata University)

HAD_07_YukiFujimoto.pdf

14:40 [FJPPN A_RD_23, remote] Correlation between vibrations, luminosity and beam position measurements at SuperKEKB

Speaker: Laurent BRUNETTI (LAPP CNRS)

Application-A-RD-23-2026_v01.pdf

15:00 [FJPPN A_RD_32, remote] Beyond the-state-of-the-art SRF cavities with advanced surface preparation

Speaker: Akira Miyazaki (CNRS/IN2P3/IJCLab)

document.pdf

15:20 [FJPPN COS_01, remote] Interfacing the instrument and data analysis pipeline developments for the observation of primordial CMB B modes with LiteBIRD

Speaker: Clément Leloup (IJCLab - CNRS)

14:00 → 15:40 Collaboration projects: Parallel Ib

Convener: Guillamue Batigne

14:00 [FKPPN BEAM, remote] Beam simulations

Speaker: Kihyeon Cho (KISTI)

fkppn2026_beam_051826.pdf

14:25 [FKPPN FAZIA, remote] French-Korean Collaboration for FAZIA experiment

Speaker: Byungsik Hong (Korea University)

Hong_upload.pdf

14:50 [FKPPN DRDCALOECAL]

Speaker: Roman Poeschl (CNRS/IN2P3/IJCLab)

CALICE_talk180526.pdf

15:15 [FKPPN SPARADA] SPAce RAdiation DAmage

Speaker: Ji Won Choi (Yonsei University)

FKPPN-2026_SPARADA.pdf

16:10 → 16:50 Keynote: Hamamatsu Photonics

Convener: Junji Haba

16:10 Introduction to MPPC as a Photon Counting Device and Its Development

This presentation provides an overview of the latest technologies and applications of the Multi-Pixel Photon Counter (MPPC), also known as the SiPM, focusing primarily on high-energy physics experiments, as one of Hamamatsu Photonics’ key optical detection technologies.

Speaker: Yoichiro Ishikawa (Hamamatsu Photonics K.K.)

20260518_Intoduction to MPPC as a Photon Counting Device and Its Development.pdf

16:50 → 17:50 Collaboration projects: Plenary II

Convener: Junji Haba

16:50 [FJPPN A_RD_29, remote] R&D toward next generation Energy Recovery Linacs

Speaker: Oleksiy Fomin (IJCLab / IN2P3)

17:10 [FJPPN D_RD_40] Design and characterization of very finely segmented pixelated AC-LGAD sensors and readout electronics

Speaker: Koji Nakamura (KEK)

document.pdf

17:30 [FJPPN D_RD_27] Study of modern FPGA device and associated new technology, and search for possible application in High Energy experiments

Speaker: Yun-Tsung Lai (KEK IPNS)

20260518_D_RD_27.pdf

17:50 → 18:10 Award ceremony: Young Investigator Award

Convener: Marc Besancon

17:50 [FJPPN Young Investigator Award]

Speaker: Claire Dalmazzone

document.pdf

FJ_FK_award_Marc_Besancon_2026_YS_award.pdf

18:30 → 20:30 Social events: Reception

Tuesday, 19 May

09:00 → 10:40 Collaboration projects: Parallel IIa

Convener: Jerome Baudot

09:00 [FJPPN FLAV_06] Precise Measurements and Searches for Forbidden Decays of B mesons and tau lepton

Speaker: Akimasa ISHIKAWA (KEK)

20260519TYLFJPPN_v1.0_ishikawa.pdf

09:20 [FJPPN D_RD_28] Toward the design of the TPC at future colliders

Speaker: Serguei GANJOUR (CEA-Saclay/IRFU)

09:40 [FJPPN D_RD_29] Bootstraping mAps development in a SHared Investigation (BASHI)

Speaker: Manabu Togawa (KEK)

D_RD_29_BASHI_2026.pdf

10:00 [FJPPN D_RD_32] Future SuperKEKB IR design upgrade Challenge for higher luminosity

Speaker: Shuji Tanaka (KEK)

D_RD32 2026 reportR2.pdf

10:20 [FJPPN D_RD_39] New generation of MAPS-based telescope with the sensors planned for the Belle II upgrade

Speaker: Jerome Baudot (IPHC-Strasbourg)

baudot_DRDR39-1.pdf

09:25 → 10:40 Collaboration projects: Parallel IIb

Convener: Youngman Kim

09:25 [FKPPN HotDISCO, remote] 2025-2026 activity report of the HotDISCO project

Speaker: Alexander Rothkopf (Korea University)

FKPPN_Rothkopf_v1_anim.pdf

09:50 [FKPPN THW-BSM, remote] The Top quark and the Higgs boson as Windows

Speaker: Seung J. Lee (KIAS)

10:15 [FKPPN VUD-NUCL, remote] Nuclear structure corrections for low-energy precision tests of the Standard Model via nuclear beta decays

Speaker: Latsamy Xayavong (Yonsei University)

FKPPL_Workshop_2026.pdf

11:10 → 12:30 Collaboration projects: Parallel IIIa

Convener: Megumi Naruki

11:10 [FJPPN D_RD_30] RPC assembling facility in J-PARC

Speaker: Natsuki Tomida (Kyoto University)

20260519_FJPPN_tomida5.pdf

11:30 [FJPPN D_RD_33] AC-LGAD Detector with Continuous Readout for 4-Dimensional High-Resolution Measurement at EIC ePIC

Speaker: Kenta Shigaki (Hiroshima University)

fjppn_shigaki_20260519.pdf

11:50 [FJPPN D_RD_38] Next-Generation MAPS Sensors for ALICE 3 Outer Tracker

Speaker: Yorito Yamaguchi (Hiroshima University)

D_RD_38_yamaguchi.pdf

12:10 [FJPPN D_RD_36] Commissioning and further development of cryogenic readout electronics for LAr-TPC applications

Speaker: Ritsuya HOSOKAWA (Iwate University)

11:10 → 12:25 Collaboration projects: Parallel IIIb

Convener: Francois Le Diberder

11:10 [FKPPN ALICE-HF]

Speaker: Rachid Guernane (LPSC Grenoble CNRS–IN2P3/University Grenoble Alpes)

11:35 [FKPPN RPCGAP, remote] RPC gap production facility for CMS and beyond

Speaker: Tae Jeong Kim (Hanyang University)

2026_0519_FKPPN_Taejeong.pdf

12:00 [FKPPN FNEPS, remote] Recent (interesting) alternatives to FIMP/WIMP scenarios

Speaker: Yann Mambrini (CNRS)

14:00 → 14:40 Keynote: Hyper K project

Convener: Naohito Saito

14:00 Status of HyperKamiokande

Speaker: Christophe Bronner (Yokohama National University)

HK_project.pdf

14:40 → 15:40 Collaboration projects: Plenary III

Convener: Naohito Saito

14:40 [FJPPN NU_10] Neutrino cross section measurements with the current and upgraded T2K near detectors

Speaker: Wataru Okinaga (The University of Tokyo)

NU_10.pdf

15:00 [FJPPN NU_09] Characterization of the upgraded J-PARC neutrino beam for T2K-II and HK experiments

Speaker: Romain Gaior (ILANCE / LPNHE)

document.pdf

15:20 [FJPPN D_RD_41] R&D towards ND280++ a new Near Detector for the Hyper-K precision phase era

Speaker: Tatsuya Kikawa (Kyoto University)

d_rd_41_kikawa.pdf

16:10 → 18:15 Institutional reports: French, Japanese, Korean labs

Convener: Yutaka Ushiroda

16:10 KEK report

Speaker: Naohito Saito (KEK)

IPNS-TYL-2026-0519v0-flat.pdf

16:35 Report from South Korea

Speaker: Jung Keun Ahn (Korea U.)

17:00 IN2P3 report

Speaker: Arnaud Lucotte (IN2P3)

PRESENTATION_FJPPN-FKPPN-MAY-2026.pdf

17:25 irfu report [remote]

Speaker: Marine Vandebrouck

17:50 Report from TYL

Speaker: Cristina Carloganu (TYL IN2P3/CNRS & KEK)

19:00 → 21:00 Social events: Banquet

Wednesday, 20 May

09:00 → 10:40 Collaboration projects: Parallel IVa

Convener: Kensei Umemori

09:00 [FJPPN D_RD_37] Evaluation of Temporal Resolution in Monolithic Pixel Sensors Using Time-Structured X-rays at a Synchrotron Facility

Speaker: Fabienne ORSINI (RIKEN SPring-8 Center)

09:20 [FJPPN A_RD_25] Continued effort towards ultimate performance for accelerator cavities

Speaker: Yasuhiro Fuwa (Japan Atomic Energy Agency)

09:40 [FJPPN A_RD_26] Investigation of an alternative path for SRF cavity fabrication and surface processing

Speaker: Takeshi DOHMAE (KEK)

10:00 [FJPPN A_RD_27] Robotisation of clean room assembly

Speaker: Hayato Araki (KEK)

10:20 [FJPPN A_RD_28] Diagnostics and bunker design for a high-performance cryomodule test facility at KEK

Speaker: Mathieu Omet (KEK)

09:00 → 10:45 Collaboration projects: Parallel IVb

Convener: Roman Poeschl

09:00 [FJPPN COMP_05] R&D for the exascale computing environment

Speaker: Sebastien Gadrat (CC-IN2P3 / CNRS)

FJPPN_Report_COMP05.pdf

09:20 [FJPPN contrib] ssbar production in future linear colliders

Speaker: Jesús Pedro Márquez Hernández (IJCLAB (CNRS))

09:40 [FJPPN contrib] CNN-Based Hadron Energy Regression for the ILD SiW-ECAL and AHCAL System

Speaker: Xin XIA (IJCLab - CNRS)

10:00 [FJPPN contrib] Upgrade of the reconstruction algorithms from Super-K towards Hyper-K

Speaker: Erwan Le Blévec (Laboratoire LePrince-Ringuet / ILANCE)

10:20 [FKPPN ABI-SMNS]

Speaker: Youngman Kim (CENS, IBS)

11:10 → 12:10 Collaboration projects: Plenary IV

Convener: Emi Kou

11:10 [FJPPN APP_01] Investigation of oxygen effects induced by carbon ion irradiation via Geant4-DNA simulations

Speaker: Shogo Okada (KEK)

11:30 [FJPPN A_RD_22] Modeling and start-to-end simulation of positron sources for future colliders

Speaker: Yoshinori Enomoto (KEK)

11:50 [FJPPN A_RD_24] Study of Laser – Beam arrival time synchronization towards sub-ps level

Speaker: Antoine Back (IJCLab - CNRS/IN2P3 - Université Paris-Saclay)

12:10 → 12:50 FJPPN 20: past 20 years and future

Convener: Francois Le Diberder

12:10 FJPPN 20 introduction

Speaker: Francois Le Diberder (IJCLab Orsay)

12:15 Memory from the KEK side

Speaker: Junji Haba (KEK/IPNS)

12:30 Memory from the French side

Speaker: Isabelle Ripp-Baudot (IPHC Strasbourg, IN2P3)

12:45 Future of collaborations

Speaker: Shoji Asai (KEK)

12:50 → 13:00 Closing

Convener: Youngman Kim

13:00 → 14:00 TYL working lunch

14:00 → 15:30 Meetings: FJPPN steering

15:30 → 17:00 Meetings: FKPPN steering

Thursday, 21 May

09:00 → 16:30 Social events: Excursion