H. Sugimura

activity

20082021

most citedObservation of Spin-Dependent Charge Symmetry Breaking in

Λ N

Interaction: Gamma-Ray Spectroscopy of

_{Λ}^{4}

115 citations · 577 across the 13 of their papers we have counts for

collaborators

13 papers

physics.acc-ph2021

Analysis and Stabilization of AC Line Synchronized Timing System for SuperKEKB

Di Wang, Kazuro Furukawa, Masanori Satoh +4

A timing system provides high-precision signals to allow the controls over a variety of hardware and software components in the accelerator complex. This is guaranteed by the radio…

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-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★ 109 cited

Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2 AGeV

C. Rappold, E. Kim, D. Nakajima +50

A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy-ion beams, was conducted. Using the invariant mass method, the spectroscopy of h…

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…

nucl-ex2008★ 8 cited

The HypHI project: Hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and FAIR

S. Bianchin, P. Achenbach, S. Ajimura +26

The HypHI collaboration aims to perform a precise hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and fAIR in order to study hypernuclei at extr…

Analysis and Stabilization of AC Line Synchronized Timing System for SuperKEKB

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

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