Repulsive nature of optical potentials for high-energy heavy-ion scattering

Furumoto, T.; Sakuragi, Y.; Yamamoto, Yasuo

doi:10.1103/physrevc.82.044612

Cited by 44 publications

(59 citation statements)

References 37 publications

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“…The increase of the RMS radii by the deformation is only 4 − 6%, but it is quite important that such a small effect is detectable in the experimental data. Owing to this effect, the calculated reaction cross sections reproduce the data for [28][29][30]32 Ne. For 31 Ne, however, the present results still underestimate the measured cross sections.…”

Section: Discussionsupporting

confidence: 61%

“…It is very likely that the deformed WS model has almost a same amount of σ R reduction. After this reduction, the calculated cross sections agrees with the data for [28][29][30]32 Ne, but underestimates the data by 32 ± 22 mb for 31 Ne. Thus, the theoretical results are consistent with the data for 30 Ne but not for 31 Ne, because the difference of σ R between the two nuclei is smaller in the model calculation than in the data.…”

Section: Discussionsupporting

confidence: 55%

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Deformation effect on total reaction cross sections for neutron-rich Ne isotopes

et al. 2011

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Isotope-dependence of measured reaction cross sections in scattering of 28−32 Ne isotopes from 12 C target at 240 MeV/nucleon is analyzed by the double-folding model with the Melbourne g-matrix. The density of projectile is calculated by the mean-field model with the deformed Wood-Saxon potential. The deformation is evaluated by the antisymmetrized molecular dynamics. The deformation of projectile enhances calculated reaction cross sections to the measured values.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionsupporting

confidence: 55%

Deformation effect on total reaction cross sections for neutron-rich Ne isotopes

et al. 2011

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“…In the folding model, the optical potential is obtained by folding the g-matrix [4][5][6][7][8][9][10][11][12][13][14] with the target density ρ T for NA scattering and with ρ T and the projectile one ρ P for AA scattering; see for example Refs. [15][16][17][18][19] for the folding procedure. The model is now called the single-folding (SF) model for NA scattering and the double-folding (DF) model for AA scattering.…”

Section: Introductionmentioning

confidence: 99%

Microscopic approach toHe3scattering

et al. 2015

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We propose a practical folding model to describe 3 He elastic scattering. In the model, 3 He optical potentials are constructed by making the folding procedure twice. First the nucleon-target potential is evaluated by folding the Melbourne g-matrix with the target density and localizing the nonlocal folding potential with the Brieva-Rook method, and second the resulting local nucleon-target potential is folded with the 3 He density. This double single-folding model well describes 3 He elastic scattering from 58 Ni and 208 Pb targets in a wide incident-energy range from 30 MeV/nucleon to 150 MeV/nucleon with no adjustable parameter. Spin-orbit force effects on differential cross sections are found to be appreciable only at higher incident energies such as 150 MeV/nucleon. Three-nucleon breakup effects of 3 He are investigated with the continuum discretized coupled-channels method and are found to be appreciable only at lower incident energies around 40 MeV/nucleon. Effects of knock-on exchange processes are also analyzed.

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“…In particular, the folding model with the Melbourne g matrix [26] The potential is composed of the direct and exchange parts, U DR and U EX [41,42]:…”

Section: A Folding Modelmentioning

confidence: 99%

Ground-state properties of neutron-rich Mg isotopes

et al. 2014

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We analyze recently measured total reaction cross sections for [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] Mg isotopes incident on 12 C targets at 240 MeV/nucleon by using the folding model and antisymmetrized molecular dynamics (AMD). The folding model well reproduces the measured reaction cross sections, when the projectile densities are evaluated by the deformed Woods-Saxon (def-WS) model with AMD deformation. Matter radii of [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] Mg are then deduced from the measured reaction cross sections by fine tuning the parameters of the def-WS model. The deduced matter radii are largely enhanced by nuclear deformation. Fully microscopic AMD calculations with no free parameter well reproduce the deduced matter radii for [24][25][26][27][28][29][30][31][32][33][34][35][36] Mg, but still considerably underestimate them for 37,38 Mg. The large matter radii suggest that 37,38 Mg are candidates for deformed halo nucleus. AMD also reproduces other existing measured ground-state properties (spin parity, total binding energy, and one-neutron separation energy) of Mg isotopes. Neutron-number (N ) dependence of deformation parameter is predicted by AMD. Large deformation is seen from 31 Mg with N = 19 to a drip-line nucleus 40 Mg with N = 28, indicating that both the N = 20 and 28 magicities disappear. N dependence of neutron skin thickness is also predicted by AMD.

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Repulsive nature of optical potentials for high-energy heavy-ion scattering

Cited by 44 publications

References 37 publications

Deformation effect on total reaction cross sections for neutron-rich Ne isotopes

Deformation effect on total reaction cross sections for neutron-rich Ne isotopes

Microscopic approach toHe3scattering

Ground-state properties of neutron-rich Mg isotopes

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