English Summary

The workshop for publicly offered research projects in the Transformative Research Area (A), “Quantum Matter in the Universe Unveiled by Precision Numerical Computations,” was held at the Research Center for Nuclear Physics (RCNP), Osaka University, from June 15 to 17, 2026. The workshop provided an opportunity to discuss newly selected publicly offered research projects and to explore future directions toward the creation of new interdisciplinary science.

Toshiyuki Gogami’s project, “Precision Hypernuclear Physics Opened by the New S-2S Spectrometer: Exploring Baryon–Baryon Forces in Medium-Mass Nuclei,” has been selected as a publicly offered research project in this Transformative Research Area (A). The project aims to develop precision spectroscopy of medium-mass Lambda hypernuclei at J-PARC using the newly constructed high-resolution magnetic spectrometer S-2S.

On June 16, 2026, Toshiyuki Gogami, Associate Professor at Shiga University and Visiting Associate Professor at Kyoto University, gave a presentation entitled “Precision Spectroscopy of Medium-Mass Lambda Hypernuclei by Missing-Mass Spectroscopy with a Pion Beam.”

The presentation focused on hypernuclear physics programs at J-PARC and Jefferson Lab. In particular, it discussed the experimental approach of missing-mass spectroscopy with pion beams, the role of the S-2S spectrometer in achieving high-resolution measurements, and the physics motivation for investigating baryon–baryon interactions in medium-mass Lambda hypernuclei. The complementary roles of J-PARC and JLab hypernuclear spectroscopy were also discussed in the broader context of strangeness nuclear physics and quantum matter under extreme conditions.