H. Ohnishi

collaborators

4 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…

nucl-ex2025

Measurement of $^{3, 4}$ He( $K^{-}, π^{0}$ ) $_{Λ}^{3, 4}$ H reaction cross section and evaluation of hypertriton $Λ$ binding energy

T. Akaishi, H. Asano, X. Chen +32

Light $s$ -shell hypernuclei ( $_{Λ}^{3, 4} H$ ) and their ground-state properties are crucial benchmarks in hypernuclear physics. In particular, comparing the production cross sec…

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

Measurement of 3,4He(K−,π0)Λ3,4​H reaction cross section and evaluation of hypertriton Λ binding energy

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

Measurement of $^{3, 4}$ He( $K^{-}, π^{0}$ ) $_{Λ}^{3, 4}$ H reaction cross section and evaluation of hypertriton $Λ$ binding energy