English Summary

On June 22, 2026, Kei Ishido, an M2 graduate student at the Graduate School of Science, Kyoto University, gave a poster presentation at the 2026 JLUO Poster Competition held at Jefferson Lab in the United States. The poster competition was organized for graduate students prior to the JLUO Annual Meeting, providing an opportunity for young researchers to present their work and interact with the broad JLab user community.

Ishido presented his work on the development of a solid target system for future Lambda-hypernuclear spectroscopy at Jefferson Lab, scheduled to begin in January 2029. The experiment aims to study charge symmetry breaking in Lambda-nucleon interactions through high-precision spectroscopy of Lambda hypernuclei.

The target system is an essential component for achieving precise missing-mass spectroscopy. Its design must satisfy requirements such as target thickness, thermal stability, position accuracy, and robustness under beam irradiation. Ishido’s work contributes to the preparation of the experimental apparatus for the upcoming JLab hypernuclear program.

Through the poster presentation and discussions at Jefferson Lab, Ishido exchanged ideas with researchers and students working on a wide range of physics topics, including nuclear physics, hadron physics, QCD, detector development, and accelerator-based experiments. This was a valuable opportunity to present the activities of the Kyoto University and Shiga University Strangeness Nuclear Physics Group in an international research environment.

Our group is pursuing international collaborative research at JLab and J-PARC, covering hypernuclear spectroscopy, detector and target-system development, data acquisition, analysis software, simulations, and physics analysis. We welcome students and researchers who are interested in joining or collaborating with us. Please feel free to contact Toshiyuki Gogami for further information.