H. Asano

activity

20182025

K ˉ N N

bound state in the

^{3} He (K^{-}, Λ p) n

reaction

41 citations · 82 across the 7 of their papers we have counts for

collaborators

7 papers

nucl-ex2025★ 3 cited

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…

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-ex2023★ 3 cited

Precise lifetime measurement of $_{Λ}^{4}$ H hypernucleus using in-flight $^{4}$ He $(K^{-}, π^{0})_{Λ}^{4}$ H reaction

T. Akaishi, H. Asano, X. Chen +35

We present a new measurement of the $_{Λ}^{4}$ H hypernuclear lifetime using in-flight $K^{-}$ + $^{4}$ He $\to$ $_{Λ}^{4}$ H + $π^{0}$ reaction at the J-PARC hadron facility. We demonstrat…

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-ex2020★ 41 cited

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…

hep-ex2019★ 11 cited

EMPHATIC: A proposed experiment to measure hadron scattering and productioncross sections for improved neutrino flux predictions

T. Akaishi, L. Aliaga-Soplin, H. Asano +47

Hadron scattering and production uncertainties are a limiting systematic on accelerator and at-mospheric neutrino flux predictions. New hadron measurements are necessary for neutri…

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…

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

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

Precise lifetime measurement of Λ4​H hypernucleus using in-flight 4He(K−,π0)Λ4​H reaction

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

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