Intruder configurations in the ground state of 30Ne

Liu, Hongna; Lee, J; Doornenbal, P.; Scheit, H.; Takeuchi, Satoshi; Aoi, N.; Li, Ka; Matsushita, M.; Steppenbeck, D.; Wang, Handing; Baba, H.; Ideguchi, E.; Kobayashi, N.; Kondo, Y.; Lee, G; Michimasa, S.; Motobayashi, T.; Poves, A.; Sakuraï, H.; Takechi, M.; Togano, Y.; Tostevin, J. A.; Utsuno, Yutaka

doi:10.1016/j.physletb.2017.01.052

Cited by 25 publications

(68 citation statements)

References 32 publications

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“…a simulation for determining the efficiency of the array due to the extended size of the target. Previously reported efficiency values were in agreement ( 6% error) with the simulation [39][40][41]. Figure 1 shows as an example the particle identification plot obtained with the BigRIPS and ZeroDegree spectrometers for the first setting.…”

Section: Methodssupporting

confidence: 79%

Inelastic scattering of neutron-rich Ni and Zn isotopes off a proton target

Cortés¹,

Doornenbal²,

Dupuis³

et al. 2018

Phys. Rev. C

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Proton inelastic scattering of 72,74 Ni and 76,80 Zn ions at energies around 235 MeV/nucleon was performed at the Radioactive Isotope Beam Factory and studied using γ-ray spectroscopy. Angular integrated cross sections for direct inelastic scattering to the 2 + 1 and 4 + 1 states were measured. The Jeukenne-Lejeune-Mahaux folding model, extended beyond 200 MeV, was used together with neutron and proton densities stemming from quasiparticle random-phase approximation (QRPA) calculations to interpret the experimental cross sections and to infer neutron to proton matrix element ratios. In addition, coupled-channels calculations with a phenomenological potential were used to determine deformation lengths. For the Ni isotopes, correlations favor neutron excitations, thus conserving the Z = 28 gap. A dominance of proton excitation, on the other hand, is observed in the Zn isotopes, pointing to the conservation of the N = 50 gap approaching 78 Ni. These results are in agreement with QRPA and large-scale shell-model calculations.

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Section: Methodssupporting

confidence: 79%

Inelastic scattering of neutron-rich Ni and Zn isotopes off a proton target

Cortés¹,

Doornenbal²,

Dupuis³

et al. 2018

Phys. Rev. C

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“…Figure 2 shows the obtained γ -ray spectra for 35 Mg after applying the Doppler correction for detectors with azimuthal angles ϑ 65 • . The angular range was selected to suppress low-energy contributions from the atomic background, enabling the observation of γ -ray transitions above ∼200 keV, as demonstrated in the spectroscopy of 29 Ne [34]. The Doppler shift was corrected with the midtarget velocity of the reaction residue calculated by the ATIMA code [35].…”

Section: Analysis and Experimental Resultsmentioning

confidence: 99%

In-beam γ -ray spectroscopy of Mg35 via knockout reactions at intermediate energies

et al. 2017

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The isotope 35 Mg was spectroscopically studied via nucleon-removal reactions from 36 Mg and 37 Al secondary beams at intermediate energies. The experiment's aim was to clarify the level structure of this nucleus located in between the N = 20 and 28 shell quenchings. De-excitation γ -ray energies, exclusive cross sections, and parallel momentum of outgoing 35 Mg for several final states were measured and compared to structure calculations in the shell model and antisymmetrized molecular dynamics framework and the eikonal reaction calculation, further developing the level scheme of 35 Mg. It was found that a large fraction of the one-neutron knockout reaction goes into unbound states of 35 Mg, which may explain missing f -wave strength.

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“…Absolute cross sections are discussed in Ref. [37] together with the 1n removal reaction from 30 Ne [38]. Restrictions on M γ were utilized to enhance the peak to total of observed γ -ray transitions, as demonstrated in earlier studies [25,39].…”

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confidence: 99%