T. Hiraiwa

activity

20152026

η^{'}

bound nuclei in the

^{12} C (γ, p)

reaction with simultaneous detection of decay products

25 citations · 155 across the 15 of their papers we have counts for

collaborators

Showing nucl-exShow all

9 papers · 1 filter

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-ex2024

Measurement of the mesonic decay branch of the $K ˉ N N$ quasi-bound state

T. Yamaga, S. Ajimura, H. Asano +67

We conducted measurements of $K^{-} +^{3} He \to π Y N + N^{'}$ reactions using a $1 GeV / c$ $K^{-}$ -beam, with the objective of understanding the broad decay width of $\bar…

nucl-ex2022★ 18 cited

Pole position of $Λ (1405)$ measured in $d (K^{-}, n) π Σ$ reactions

PARC E31 Collaboration, S. Aikawa, S. Ajimura +74

We measured a set of $π^{\pm} Σ^{\mp}$ , $π^{0} Σ^{0}$ , and $π^{-} Σ^{0}$ invariant mass spectra below and above the $K ˉ N$ mass threshold in $K^{-}$ -induced reactions on deuteron. We deduced th…

nucl-ex2022★ 9 cited

Differential cross sections and photon beam asymmetries of $η$ photoproduction on the proton at $E_{γ}$ = 1.3-2.4 GeV

T. Hashimoto, T. Nam, N. Muramatsu +57

We have carried out exclusive measurements for the photoproduction of an $η$ meson from a proton target with an egg-shaped calorimeter made of BGO crystals (BGOegg) and forward cha…

nucl-ex2020

Observation of a $K ˉ N N$ bound state in the $^{3} He (K^{-}, Λ p) n$ reaction

T. Yamaga, S. Ajimura, H. Asano +66

We have performed an exclusive measurement of the $K^{-} +^{3} He \to Λ p n$ reaction at an incident kaon momentum of $1 GeV / c$ .In the $Λ p$ invariant mass spectrum, a…

nucl-ex2020★ 25 cited

Search for $η^{'}$ bound nuclei in the $^{12} C (γ, p)$ reaction with simultaneous detection of decay products

N. Tomida, N. Muramatsu, M. Niiyama +60

We measured missing mass spectrum of the $^{12} C (γ, p)$ reaction for the first time in coincidence with potential decay products from $η^{'}$ bound nuclei. We tagged an ( $η + p$ ) p…

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

Measurement of the mesonic decay branch of the KˉNN quasi-bound state

Pole position of Λ(1405) measured in d(K−,n)πΣ reactions

Differential cross sections and photon beam asymmetries of η photoproduction on the proton at Eγ​ = 1.3-2.4 GeV

Observation of a KˉNN bound state in the 3He(K−,Λp)n reaction