A. Toyoda

activity

20042022

most citedGamma-Ray Spectroscopy in Lambda Hypernuclei

71 citations · 502 across the 22 of their papers we have counts for

collaborators

22 papers

hep-ex2022★ 3 cited

New determination of the branching ratio of the structure dependent radiative $K^{+} \to e^{+} ν_{e} γ$ decay

A. Kobayashi, H. Ito, S. Bianchin +23

The branching ratio of the structure dependent (SD) radiative $K^{+} \to e^{+} ν_{e} γ$ decay relative to that of the $K^{+} \to e^{+} ν_{e} (γ)$ decay including the internal br…

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-ex2018★ 6 cited

" $K^{-} p p$ ", a $K$ -Meson Nuclear Bound State, Observed in $^{3} He (K^{-}, Λ p) n$ Reactions

PARC E15 collaboration, S. Ajimura, H. Asano +67

We observed a distinct peak in the $Λ p$ invariant mass spectrum of $^{3} He (K^{-}, Λ p) n$ , well below the mass threshold of $m_{K} + 2 m_{p}$ . By selecting a relatively large mome…

physics.ins-det2016★ 7 cited

The design and basic performance of a Spiral Fiber Tracker for the J-PARC E36 experiment

O. Mineev, S. Bianchin, M. D. Hasinoff +12

A spiral fiber tracker (SFT) has been designed and produced for the J-PARC E36 experiment as an element of the tracking system for conducting a high-resolution momentum measurement…

nucl-ex2016★ 50 cited

Structure near $K^{-}$ + $p$ + $p$ threshold in the in-flight $^{3}$ He $(K^{-}, Λ p) n$ reaction

PARC E15 Collaboration, Y. Sada, S. Ajimura +69

To search for an S= -1 di-baryonic state which decays to $Λ p$ , the $^{3} He (K^{-}, Λ p) n_{mi ss in g}$ reaction was studied at 1.0 GeV/ $c$ . Unobserved neutrons were kinematically ide…

physics.ins-det2015★ 12 cited

Fabrication of silica aerogel with $n$ = 1.08 for $e^{+} / μ^{+}$ separation in a threshold Cherenkov counter of the J-PARC TREK/E36 experiment

Makoto Tabata, Akihisa Toyoda, Hideyuki Kawai +4

This study presents the development of hydrophobic silica aerogel for use as a radiator in threshold-type Cherenkov counters. These counters are to be used for separating positrons…

New determination of the branching ratio of the structure dependent radiative K+→e+νe​γ decay

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

"K−pp", a K-Meson Nuclear Bound State, Observed in 3He(K−,Λp)n Reactions