The l = 3 and 4 transitions in inelastic scattering of protons from 66Zn

Yagi, K.; Saji, Yoshiaki; Ishizaki, Y.; Ishimatsu, T.; Nakajima, Yoshikazu; Matoba, M.; Huang, Chao‐Yuan

doi:10.1016/0375-9474(69)90727-1

Cited by 20 publications

(22 citation statements)

References 18 publications

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“…The large uncertainties arise from the low statistics for this isotope. Figure 5 shows the spectra obtained for 80 Zn. In order to limit the atomic background at low energies, only detectors at forward angles were considered.…”

Section: Resultsmentioning

confidence: 99%

“…Two different settings were applied to BigRIPS. From the first one, centered on 73 Co, the isotopes 72,74 Ni and 76 Zn were analyzed, and from the second, centered on 79 Cu, 80 Zn was analyzed. Due to the existence of an isomeric state of 78 Zn [33], (p,p ) cross sections could not be determined for this isotope.…”

Section: Methodsmentioning

confidence: 99%

“…The present work reports on proton inelastic scattering of isotopes in the vicinity of 78 Ni, namely 72,74 Ni and 76,80 Zn, using a thick liquid hydrogen target at energies above 200 MeV/nucleon in inverse kinematics. Section II describes the experimental set up.…”

Section: Introductionmentioning

confidence: 99%

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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: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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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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“…(1) Z T = 6-20: 12 C, 16 O, 20 Ne, 24 Mg, 28 Si, 32 S, 40 Ar, 40 Ca, 42 Ca, 44 Ca, and 48 Ca; (2) Z T = 22-28: 46 Ti, 48 Ti, 50 Ti, 50 Cr, 52 Cr, 54 Cr 54 Fe, 56 Fe, 58 Ni, 60 Ni, 62 Ni, and 64 Ni; (3) Z T = 40-68: 90 Zr, 98 Mo, 100 Mo, 144 Sm, 148 Sm, 150 Sm, 152 Sm, 154 Sm, 160 Gd, 164 Dy, 166 Er, and 168 Er; (4) Z T = 70-92: 172 Yb, 174 Yb, 176 Yb, 178 Hf, 180 Hf, 182 W, 184 W, 192 Os, 208 Pb, 232 Th, and 238 U.…”

Section: Proton-nucleus Elastic-scattering Cross Sections At 65 Mevmentioning

confidence: 99%

Microscopic global optical potential for nucleon-nucleus systems in the energy range 50–400 MeV

et al. 2019

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We provide a microscopic global optical potential (MGOP) for nucleon-nucleus (NA) systems in a wide range of nuclear mass numbers (A = 10-276) and incident energies (E = 50-400 MeV). The potential is microscopically constructed based on a single-folding (SF) model with the complex G-matrix interaction. The nuclear densities used in the SF model are generated, in a nonempirical way, from two kinds of microscopic mean-field models: the relativistic-mean-field (RMF) and Skyrme-Hartree-Fock + BCS (HF+BCS) models. We calculate the NA potentials for more than 1000 even-even nuclei with atomic number Z = 6-92, involving proton-and neutron-rich unstable nuclei. We confirm that both the MGOP models well reproduce the available experimental data of the total reaction cross sections, the total neutron cross sections, the elastic-scattering cross sections, the analyzing power, and the spin-rotation function Q. We also calculate the proton scattering cross sections of 22 O, 24 O, and 56 Ni targets to compare the experimental data and then the cross sections for unknown 48 S, 100 Zr, and 110 Zr are presented for future measurements. For the sake of convenience, the real and imaginary parts of the central and spin-orbit components of the NA potentials are respectively represented in a linear combination of 12-range Gaussians. They are provided on the website [http://www2.yukawa.kyoto-u.ac.jp/∼ takenori.furumoto/] with a program source file for reconstructing the MGOP.

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“…0 is the energy scale factor of the level energies, 20 denotes the nuclear softness of 2 -vibration, a 32 is B 3 =B 2 ð 30 = 20 Þ 2 , B is the mass parameter for multipolarity , denotes the nuclear softness of octupole vibration, determines the non-axiality of octupole deformation, 0 is the equilibrium quadrupole non-axiality, and 2 n denotes the energy splitting of a doubly degenerate level due to the tunneling effects. The details of these parameters are explained by Sukhovitskiĩ et al 25) The used values of 20 were obtained from the analyses of inelastic scattering of protons [28][29][30][31] and were very small in comparison with the 2 values compiled by Raman et al…”

Section: Fast Neutron Regionmentioning

confidence: 99%

New Evaluation of Neutron Nuclear Data for Zinc Isotopes

Iwamoto

2007

Journal of Nuclear Science and Technology

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New evaluation of neutron-induced nuclear data for five stable isotopes of zinc (mass numbers A ¼ 64, 66, 67, 68, and 70) was consistently carried out in the incident neutron energy range from 10 À5 eV up to 20 MeV. In the low energy region up to about 100 keV, the resonance parameters were evaluated by taking account of the available measured data. In the fast neutron region, the comprehensive calculations with nuclear reaction models, in which compound, preequilibrium, and direct processes are taken into account, were performed to estimate cross sections for various reactions and double differential cross sections of emitted neutrons and -rays. The comparisons of the evaluated cross sections with the experimental data and existing evaluated nuclear data libraries are made and show a good agreement with the measurements.

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The l = 3 and 4 transitions in inelastic scattering of protons from 66Zn

Cited by 20 publications

References 18 publications

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

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

Microscopic global optical potential for nucleon-nucleus systems in the energy range 50–400 MeV

New Evaluation of Neutron Nuclear Data for Zinc Isotopes

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