Search Results - "Chiga, N."
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Probing the Symmetry Energy with the Spectral Pion Ratio
Published in Physical review letters (23-04-2021)“…Many neutron star properties, such as the proton fraction, reflect the symmetry energy contributions to the equation of state that dominate when neutron and…”
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2
Observation of a correlated free four-neutron system
Published in Nature (London) (23-06-2022)“…A long-standing question in nuclear physics is whether chargeless nuclear systems can exist. To our knowledge, only neutron stars represent near-pure neutron…”
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3
SAMURAI spectrometer for RI beam experiments
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-12-2013)“…A large-acceptance multiparticle spectrometer SAMURAI has been constructed at the RIKEN RI Beam Factory (RIBF) for RI beam experiments. It was designed…”
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4
Precise Measurement of Differential Cross Sections of the Σ^{-}p→Λn Reaction in Momentum Range 470-650 MeV/c
Published in Physical review letters (18-02-2022)“…The differential cross sections of the Σ^{-}p→Λn reaction were measured accurately for the Σ^{-} momentum (p_{Σ}) ranging from 470 to 650 MeV/c at the J-PARC…”
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5
First observation of 28O
Published in Nature (London) (31-08-2023)“…Subjecting a physical system to extreme conditions is one of the means often used to obtain a better understanding and deeper insight into its organization and…”
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6
Extended p3/2 Neutron Orbital and the N=32 Shell Closure in Ca 52
Published in Physical review letters (23-12-2022)“…The one-neutron knockout from 52Ca in inverse kinematics onto a proton target was performed at ∼230 MeV/nucleon combined with prompt γ spectroscopy. Exclusive…”
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7
Development and application of CATCH: A cylindrical active tracker and calorimeter system for hyperon–proton scattering experiments
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-04-2022)“…In this study, we developed a new proton detector system called CATCH, which was designed for a scattering experiment involving a Σ hyperon and a proton…”
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8
Spectroscopy of deeply bound orbitals in neutron-rich Ca isotopes
Published in Physics letters. B (01-08-2024)“…The calcium isotopes are an ideal system to investigate the evolution of shell structure and magic numbers. Although the properties of surface nucleons in…”
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9
Neutron capture reaction cross-section of 79Se through the 79Se(d,p) reaction in inverse kinematics
Published in Physics letters. B (01-03-2024)“…γ emission probabilities from unbound states in 78,80Se, populated by a neutron-transfer reaction (d,p) on 77,79Se nuclei in inverse kinematics, were measured…”
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10
Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment
Published in Physics letters. B (01-06-2024)“…Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present…”
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11
Publisher Correction: First observation of 28O
Published in Nature (London) (23-11-2023)Get full text
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12
Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon
Published in Physics letters. B (10-11-2021)“…The rapidity distributions of hydrogen isotopes emitted from central collisions of neutron-rich 132Sn+124Sn and neutron-deficient 108Sn+112Sn systems at 270…”
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13
Lifetime measurements of the first 2 + states in 104,106Zr: Evolution of ground-state deformations
Published in Physics letters. B (01-11-2015)“…The first fast-timing measurements from nuclides produced via the in-flight fission mechanism are reported. The lifetimes of the first 2+states in 104,106Zr…”
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14
Gamma-ray spectroscopy of 55Sc
Published in Physica scripta (01-07-2024)Get full text
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15
Interpretation of metastable states in the N>70 Zr region
Published in The European physical journal. A, Hadrons and nuclei (08-09-2023)“…Isomeric states were observed in nuclei produced in an experiment at the RIKEN Nishina Center Radioactive Isotope Beam Factory following the in-flight fission…”
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16
Pairing Forces Govern Population of Doubly Magic ^{54}Ca from Direct Reactions
Published in Physical review letters (25-06-2021)“…Direct proton-knockout reactions of Sc55 at ∼220 MeV/nucleon were studied at the RIKEN Radioactive Isotope Beam Factory. Populated states of Ca54 were…”
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17
Measurement of differential cross sections for Σ+p elastic scattering in the momentum range 0.44–0.80 GeV/c
Published in Progress of theoretical and experimental physics (01-09-2022)“…Abstract We performed a novel Σ+p scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 Σ+p elastic scattering events were…”
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18
First spectroscopic study of 51Ar by the (p,2p) reaction
Published in Physics letters. B (01-03-2021)“…The nuclear structure of 51Ar, an uncharted territory so far, was studied by the (p,2p) reaction using γ-ray spectroscopy for the bound states and the…”
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19
SAMURAI in its operation phase for RIBF users
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-06-2016)“…The Superconducting Analyzer for Multi-particles from Radioisotope beams, SAMURAI, with a large angular and momentum acceptance has entered into the phase of…”
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20
Extending the Southern Shore of the Island of Inversion to ^{28}F
Published in Physical review letters (17-04-2020)“…Detailed spectroscopy of the neutron-unbound nucleus ^{28}F has been performed for the first time following proton/neutron removal from ^{29}Ne/^{29}F beams at…”
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