R. Kobayakawa

collaborators

3 papers

nucl-ex2026

Direct measurement of the in-medium $η^{'}$ mass spectrum through the $γ γ$ decay channel

Y. Matsumura, N. Muramatsu, T. A. Hashimoto +58

We measured the invariant mass of the $η^{'} (958)$ meson through the $η^{'} \to γ γ$ decay channel to search for possible character change of $η^{'}$ in a nuclear mediu…

nucl-ex2026

Evidence for a $K ˉ N N$ quasi-bound state in the $γ d \to K^{0} Λ p$ reaction

R. Kobayakawa, J. K. Ahn, S. Ajimura +34

The $γ d \to K^{0} Λ p$ reaction has been studied to search for a $K ˉ N N$ quasi-bound state using the LEPS2 solenoid spectrometer at SPring-8. A localized enhancement concentrated…

hep-ex2025

Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility

T. Nakano, S. Ajimura, Y. Asano +33

We present prospects for the $Θ^{+}$ pentaquark baryon search using the newly constructed LEPS2 facility at SPring-8. The LEPS2 detector system features significant improvements in a…

Direct measurement of the in-medium η′ mass spectrum through the γγ decay channel

Evidence for a KˉNN quasi-bound state in the γd→K0Λp reaction

Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility

Direct measurement of the in-medium $η^{'}$ mass spectrum through the $γ γ$ decay channel

Evidence for a $K ˉ N N$ quasi-bound state in the $γ d \to K^{0} Λ p$ reaction