N. Fujioka

Measurement of Λ Polarization in the π ¯ p → K 0 Λ Reaction at p π¯ = 1.33 GeV/ c toward a New Λ p Scattering Experiment

T. Sakao, K. Miwa, J. K. Ahn, Y. Akazawa et autres

Abstract Understanding the spectrum and dynamics of excited nucleon states ($N^{*}$ resonances) remains a central challenge in hadron physics, as these resonances emerge in intermediate states of $\pi N$ and $\gamma N$ interactions. The dynamical coupled-channel models addressing this problem rely critically …

jp, kr, fr, ru, ge (code pays fourni par la source)

Measurement of $Λ$ Polarization in the $π^{-}p \to K^{0} Λ$ Reaction at $p_{π^{-}}=1.33$ GeV/$c$ toward a New $Λp$ Scattering Experiment

T. Sakao, K. Miwa, Y. Akazawa, T. Aramaki et autres

This paper presents high-precision experimental data of the polarization of the $Λ$ hyperon in the $π^{-}p \to K^{0} Λ$ reaction, measured in the angular range $0.6<\cos θ^{CM}_{K0}<1.0$ with a fine bin width of $d\cos θ^{CM}_{K0}=0.05$. The data were obtained from the J-PARC …

fr (code pays fourni par la source)

Measurement of differential cross sections for Σ⁺p elastic scattering in the momentum range 0.44–0.80 GeV/c

T. Nanamura, K. Miwa, J. K. Ahn, Y. Akazawa et autres

We performed a novel Σ⁺+p scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 Σ⁺+p elastic scattering events were identified from 4.9 × 10⁷ tagged Σ⁺+ particles in the Σ⁺+ momentum range 0.44-0.80 GeV/c. The differential cross sections of the Σ⁺+p …

jp, kr, fr, ru, ge (code pays fourni par la source)

Development and application of CATCH: A cylindrical active tracker and calorimeter system for hyperon–proton scattering experiments

Y. Akazawa, N. Chiga, N. Fujioka, S. Hayakawa et autres

jp (code pays fourni par la source)

Recent progress and future prospects of hyperon nucleon scattering experiment

K. Miwa, T. Nanamura, T. Sakao, J. K. Ahn et autres

A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ+p, Σ−p elastic scatterings and the Σ−p → Λn scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 …

jp, kr, fr, ru, ge (code pays fourni par la source)

Precise measurement of differential cross sections of the Σ-p --> Λ n reaction in momentum range 470-650 MeV/c

K. Miwa, Y. Akazawa, T. Aramaki, S. Ashikaga et autres

The differential cross sections of the Σ-p --> Λ n reaction were measured accurately for the Σ- momentum (p_{Σ}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Facility. Precise angular information about the Σ-p --> Λ n reaction was …

fr (code pays fourni par la source)

Measurement of the differential cross sections of the Σ−p elastic scattering in momentum range 470 to 850 MeV/c

K. Miwa, J. K. Ahn, Y. Akazawa, T. Aramaki et autres

A high statistics $\mathrm{\ensuremath{\Sigma}}p$ scattering experiment is performed at the J-PARC Hadron Experimental Facility. Momentum-tagged ${\mathrm{\ensuremath{\Sigma}}}^{\ensuremath{-}}\mathrm{s}$ running in a liquid hydrogen target are accumulated by detecting the ${\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}{K}^{+}{\mathrm{\ensuremath{\Sigma}}}^{\ensuremath{-}}$ reaction with a high intensity ${\ensuremath{\pi}}^{\ensuremath{-}}$ beam of 20 M/spill. The differential cross sections …

jp, kr, fr, ru, ge (code pays fourni par la source)

Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

J-PARC E Collaboration, K. Miwa, J. K. Ahn, Y. Akazawa et autres

A high statistics $Σp$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $Σ^{-}$ running in a liquid hydrogen target were accumulated by detecting the $π^{-}p \to K^{+}Σ^{-}$ reaction with a high intensity $π^{-}$ beam of 20 …

Establishment of a Modern Experimental Technique of a \(\Sigma p\) Scattering Experiment at J-PARC

Y. Akazawa, J. K. Ahn, T. Aramaki, S. Ashikaga et autres

International audience

jp, kr, fr, ru, ge (code pays fourni par la source)

Study of \(\Lambda \) Identification Method by the \(\pi ^{ - }p \to K^{0}\Lambda \) Reaction for a \(\Lambda p\) Scattering Experiment at J-PARC

T. Sakao, J. K. Ahn, Y. Akazawa, T. Aramaki et autres

The π -p → K 0 Λ reaction is an important elementary process to produce Λ from a proton target and is a key for a Λp scattering experiment where the momentum of Λ should be tagged from the missing momentum of …

jp, kr, fr, ru, ge (code pays fourni par la source)

J-PARC E07: Systematic Study of Double Strangeness System with Hybrid Emulsion Method

Junya Yoshida, K. Agari, J. K. Ahn, T. Akaishi et autres

jp, kr, us, de, cn, mm (code pays fourni par la source)

Observation of Coulomb-Assisted Nuclear Bound State of Ξ−–N14 System

S. Hayakawa, K. Agari, J. K. Ahn, T. Akaishi et autres

In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the …

jp, kr, us, de, cn, mm (code pays fourni par la source)