K. Hosomi

activity

20122022

most citedObservation of Spin-Dependent Charge Symmetry Breaking in

Λ N

Interaction: Gamma-Ray Spectroscopy of

_{Λ}^{4}

115 citations · 481 across the 15 of their papers we have counts for

collaborators

17 papers

nucl-ex2022

Measurement of differential cross sections for $Σ^{+} p$ elastic scattering in the momentum range 0.44-0.80 GeV/c

PARC E40 Collaboration, T. Nanamura, K. Miwa +69

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 \times…

nucl-ex2021★ 2 cited

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

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

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 Fac…

nucl-ex2021★ 1 cited

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

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

A high statistics $Σ p$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $Σ^{-}$ running in a liquid hydrogen target wer…

nucl-ex2020★ 72 cited

Observation of Coulomb-assisted nuclear bound state of $Ξ^{-}$ - $^{14}$ N system

S. H. Hayakawa, K. Agari, J. K. Ahn +95

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…

nucl-ex2018★ 55 cited

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

H. Ekawa, K. Agari, J. K. Ahn +100

A double- $Λ$ hypernucleus, $_{ΛΛ} Be$ , was observed by the J-PARC E07 collaboration in nuclear emulsions tagged by the $(K^{-}, K^{+})$ reaction. This event was interprete…

nucl-ex2017★ 19 cited

First Determination of Level Structure of an $s d$ -Shell Hypernucleus, $_{Λ}^{19} F$

S. B. Yang, J. K. Ahn, Y. Akazawa +45

We report on the first observation of $γ$ rays emitted from an $s d$ -shell hypernucleus, $_{Λ}^{19} F$ . The energy spacing between the ground state doublet, $1/ 2^{+}$ and $3/ 2^{+}$ …

nucl-ex2017★ 18 cited

Missing-mass spectroscopy with the $^{6}$ Li( $π^{-}, K^{+}$ )X reaction to search for $_{Λ}^{6}$ H

R. Honda, M. Agnello, J. K. Ahn +63

We searched for the bound state of the neutron-rich $Λ$ -hypernucleus $_{Λ}^{6}$ H, using the $^{6}$ Li( $π^{-}, K^{+}$ )X double charge-exchange reaction at a $π^{-}$ beam momentum o…

nucl-ex2016★ 2 cited

Search for Pentaquark Theta+ in Hadronic Reaction at J-PARC

M. Naruki

A variety of nuclear and hadron physics experiments are being performed using meson beams at the J-PARC Hadron Facility. As the first experiment at the facility, the pentaquark The…

nucl-ex2015★ 115 cited

Observation of Spin-Dependent Charge Symmetry Breaking in $Λ N$ Interaction: Gamma-Ray Spectroscopy of $_{Λ}^{4}$ He

T. O. Yamamoto, M. Agnello, Y. Akazawa +51

The energy spacing between the ground-state spin doublet of $_{Λ}^{4}$ He(1 $^{+}$ ,0 $^{+}$ ) was determined to be $1406 \pm 2 \pm 2$ keV, by measuring $γ$ rays for the $1^{+} \to 0^{+}$ transitio…

nucl-ex2015★ 18 cited

Precise determination of $_{Λ}^{12}$ C level structure by $γ$ -ray spectroscopy

K. Hosomi, T. Ma, S. Ajimura +30

Level structure of the $_{Λ}^{12}$ C hypernucleus was precisely determined by means of $γ$ -ray spectroscopy. We identified four $γ$ -ray transitions via the $^{12}$ C $(π^{+}, K^{+} γ)$ re…

nucl-ex2014★ 71 cited

Observation of the " $K^{-} pp$ "-like structure in the $d (π^{+}, K^{+})$ reaction at 1.69 GeV/ $c$

Yudai Ichikawa, Tomofumi Nagae, Hiroyuki Fujioka +41

We have observed a " $K^{-} pp$ "-like structure in the $d (π^{+}, K^{+})$ reaction at 1.69 GeV/ $c$ . In this reaction $Λ (1405)$ hyperon resonance is expected to be produced as a doorway to fo…

nucl-ex2014★ 23 cited

Inclusive spectrum of the $d (π^{+}, K^{+})$ reaction at 1.69 GeV/c

Yudai Ichikawa, Tomofumi Nagae, Hyoungchan Bhang +41

We have measured an inclusive missing-mass spectrum of the $d (π^{+}, K^{+})$ reaction at the pion incident momentum of 1.69 GeV/ $c$ at the laboratory scattering angles between 2$^\circ…

nucl-ex2013★ 46 cited

Search for $_{Λ}^{6}$ H hypernucleus by the $^{6}$ Li $(π^{-}, K^{+})$ reaction at $p_{π^{-}}$ = 1.2 GeV/ $c$

H. Sugimura, M. Agnello, J. K. Ahn +63

We have carried out an experiment to search for a neutron-rich hypernucleus, $_{Λ}^{6}$ H, by the $^{6}$ Li( $π^{-}, K^{+}$ ) reaction at $p_{π^{-}}$ =1.2 GeV/ $c$ . The obtained missing mass spectru…

nucl-ex2013

Near threshold angular distributions of the $^{2}$ H $(γ, Λ)$ X reaction

B. Beckford, P. Bydzovsky, A. Chiba +36

A study of the $^{2}$ H $(γ, Λ)$ X reaction was performed using a tagged photon beam at the Research Center for Electron Photon Science (ELPH), Tohoku University. The photoproduced $Λ$ w…

nucl-ex2012

Measurements of the photon induced production of $Λ$ in the $^{2}$ H $(γ, Λ)$ X process at threshold energies

B. Beckford, P. Bydzovsky, A. Chiba +38

An experiment was carried out with the NKS2+ in 2010 at the Research Center for Electron Photon Science (ELPH), in which tagged photon beams in the range of 0.8 $\leq$ $E_{γ}$ $\leq$ 1…

nucl-ex2012

Report on strangeness photoproduction experiments performed with the Neutral Kaon Spectrometer 2

B. Beckford, A. Chiba, D. Doi +43

An experiment designed to investigate the strangeness photoproduction process using a tagged photon beam in the energy range of 0.90 -1.08 GeV incident on a liquid deuterium target…

nucl-ex2012★ 39 cited

Search for the $Θ^{+}$ pentaquark via the $π^{-} p \to K^{-} X$ reaction at 1.92 GeV/ $c$

K. Shirotori, T. N. Takahashi, S. Adachi +65

The $Θ^{+}$ pentaquark baryon was searched for via the $π^{-} p \to K^{-} X$ reaction in a missing-mass resolution of 1.4 MeV/ $c^{2}$ (FWHM) at J-PARC. $π^{-}$ meson beams were incident on the l…

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

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

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

Observation of Coulomb-assisted nuclear bound state of Ξ−-14N system

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

First Determination of Level Structure of an sd-Shell Hypernucleus, Λ19​F

Missing-mass spectroscopy with the 6Li(π−,K+)X reaction to search for Λ6​H

Search for Pentaquark Theta+ in Hadronic Reaction at J-PARC

Observation of Spin-Dependent Charge Symmetry Breaking in ΛN Interaction: Gamma-Ray Spectroscopy of Λ4​He

Precise determination of Λ12​C level structure by γ-ray spectroscopy

Observation of the "K−pp"-like structure in the d(π+,K+) reaction at 1.69 GeV/c

Inclusive spectrum of the d(π+,K+) reaction at 1.69 GeV/c

Search for Λ6​H hypernucleus by the 6Li(π−,K+) reaction at pπ−​ = 1.2 GeV/c

Near threshold angular distributions of the 2H(γ,Λ)X reaction

Measurements of the photon induced production of Λ in the 2H(γ,Λ)X process at threshold energies