Search Results - "Odahara, A"
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Installation and commissioning of EURICA – Euroball-RIKEN Cluster Array
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-12-2013)“…EURICA is a project at RIKEN Nishina Center aimed at studying a wide range of exotic nuclei through β-decay measurements and high-resolution γ-ray…”
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Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI
Published in Physical review letters (06-01-2023)“…The atomic masses of ^{55}Sc, ^{56,58}Ti, and ^{56-59}V have been determined using the high-precision multireflection time-of-flight technique. The…”
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β-Decay half-lives of 76,77Co, 79,80Ni, and 81Cu: experimental indication of a doubly magic 78Ni
Published in Physical review letters (18-07-2014)“…The half-lives of 20 neutron-rich nuclei with Z=27-30 have been measured at the RIBF, including five new half-lives of (76)Co(21.7(-4.9)(+6.5) ms),…”
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Resonance width for a particle–core coupling model with a square-well potential
Published in Progress of theoretical and experimental physics (01-02-2020)“…Abstract We derive a compact formula for the width of a multi-channel resonance state. To this end, we use a deformed square-well potential and solve the…”
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β-decay half-lives of very neutron-rich Kr to Tc isotopes on the boundary of the r-process path: an indication of fast r-matter flow
Published in Physical review letters (04-02-2011)“…The β-decay half-lives of 38 neutron-rich isotopes from (36)Kr to (43)Tc have been measured; the half-lives of (100)Kr, (103-105)Sr, (106-108)Y, (108-110)Zr,…”
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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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Isomer decay spectroscopy of 164Sm and 166Gd: midshell collectivity around N=100
Published in Physical review letters (31-12-2014)“…Excited states in the N=102 isotones 166Gd and 164Sm have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the…”
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Impact of shell evolution on Gamow-Teller β decay from a high-spin long-lived isomer in 127Ag
Published in Physics letters. B (01-12-2021)“…The change of the shell structure in atomic nuclei, so-called “nuclear shell evolution”, occurs due to changes of major configurations through particle-hole…”
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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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Shape coexistence in the N=19 neutron-rich nucleus 31Mg explored by β–γ spectroscopy of spin-polarized 31Na
Published in Physics letters. B (10-04-2017)“…The structure of excited states in the neutron-rich nucleus 31Mg, which is in the region of the “island of inversion” associated with the neutron magic number…”
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Long-lived K isomer and enhanced γ vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell
Published in Physics letters. B (10-09-2016)“…The level structure of 172Dy has been investigated for the first time by means of decay spectroscopy following in-flight fission of a 238U beam. A long-lived…”
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K-mixing in the doubly mid-shell nuclide 170Dy and the role of vibrational degeneracy
Published in Physics letters. B (01-11-2016)“…A detailed study of the structure of the doubly mid-shell nucleus Dy104166170 has been carried out, following isomeric and β decay. We have measured the yrast…”
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Decay spectroscopy of 160Sm: The lightest four-quasiparticle K isomer
Published in Physics letters. B (10-02-2016)“…The decay of a new four-quasiparticle isomeric state in 160Sm has been observed using γ-ray spectroscopy at the RIBF, RIKEN. The four-quasiparticle state is…”
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New isomers in 125Pd79 and 127Pd81: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N = 82 shell closure
Published in Physics letters. B (01-05-2019)“…The neutron-rich isotopes of palladium have attracted considerable interest in terms of the evolution of the N=82 neutron shell closure and its influence on…”
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Observation of a γ-decaying millisecond isomeric state in 128Cd80
Published in Physics letters. B (10-09-2017)“…A new high-spin isomer in the neutron-rich nucleus 128Cd was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at…”
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Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu
Published in Nature physics (21-01-2019)“…Exotic nuclei are characterized by having a number of neutrons (or protons) in excess relative to stable nuclei. Their shell structure, which represents…”
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Identification of a millisecond isomeric state in Cd81129 via the detection of internal conversion and Compton electrons
Published in Physics letters. B (01-11-2014)“…The decay of an isomeric state in the neutron-rich nucleus 129Cd has been observed via the detection of internal conversion and Compton electrons providing…”
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Decay spectroscopy of 160 Sm: The lightest four-quasiparticle K isomer
Published in Physics letters. B (01-02-2016)Get full text
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Beta-gamma spectroscopy of the neutron-rich 150Ba
Published in Progress of theoretical and experimental physics (01-04-2018)“…Abstract Excited states in the neutron-rich nucleus $^{150}$Ba have been observed via ${\rm \beta}$–${\rm \gamma}$ spectroscopy at the Radioactive Isotope Beam…”
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