Microscopic optical potentials for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>scattering

Egashira, Kei; Minomo, Kosho; Toyokawa, Masakazu; Matsumoto, Takuma; Yahiro, Masanobu

doi:10.1103/physrevc.89.064611

Cited by 59 publications

(49 citation statements)

References 74 publications

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“…We refer to this model as the double single-folding (DSF) model in this paper. Very recently, it was shown that the DSF model well accounts for differential elastic cross sections and σ R for 4 He scattering without introducing any adjustable parameter [36]. In fact, the DSF model yields better agreement with the data than the DF-FDA model for 4 He 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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Section: Introductionmentioning

confidence: 99%

Microscopic approach toHe3scattering

et al. 2015

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“…The use of a g-matrix interaction having a predictive power is one of the most essential features of the present study. We use the target-density approximation (TDA) [14][15][16] for evaluating the density dependence of g matrix. This TDA g-matrix approach has been derived from the nucleus-nucleus multiple scattering theory [17] in Ref.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…This TDA g-matrix approach has been derived from the nucleus-nucleus multiple scattering theory [17] in Ref. [15] and shown to work well for describing the elastic scattering of 3 He [15] and α [14,16] off several mid-heavy and heavy target nuclei. [3,[18][19][20].…”

Section: Theoretical Frameworkmentioning

confidence: 99%

Structure of the Hoyle State of ¹²C Extracted from Reaction Observables

Minomo¹,

Ogata²

2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

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The Hoyle state of 12 C has intensively been studied theoretically and experimentally. Despite a rather clear understanding of its three-α cluster structure, the description of the Hoyle state appeared in reaction observables has not been achieved. It was reported in many studies that the (α,α ′ ) cross section theoretically obtained with using the transition density of 12 C from the ground state to the 0 + 2 state significantly overshot the measured cross section. This discrepancy is called the missing monopole strength of the Hoyle state. To solve this probelm, we apply a fully microscopic framework to the (α,α ′ ) inelastic scattering to the 0 + 2 state of 12 C, and show that the calculated result agrees with the measured cross section. We find the consistency between the monopole strength of the Hoyle state determined by structural calculation and that extracted from reaction observables. We thus show essentially there is no room for the missing monopole strength.

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“…The improvement of the double folding potential for the α scattering has recently been discussed in Ref. [17].…”

Section: Pos(inpc2016)210mentioning

confidence: 99%

Sign Of Enhanced Three Alpha Matter Radius In Alpha + 12C Inelastic Scattering

Itô¹,

Tomita²,

Iwasaki³

et al. 2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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Nuclear radius of three α rotational state in 12 C with a life time of 10 −21 second, which has been expected to have much more extended radius than the ground 12 C nucleus, is speculated from systematic analysis of the differential cross section of the α + 12 C inelastic scattering. Present analysis predicts about 0.6 ∼ 1.0 fm enhancement in the matter radius of the three α rotational state in comparison to the normal radius of the ground state. The spatial extension of the three α rotational state is comparable to the extended radius observed in the neutron halo phenomena.Constraint on the recent ab-initio calculation for the 3α states in 12 C is also discussed.

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Microscopic optical potentials forHe4scattering

Cited by 59 publications

References 74 publications

Microscopic approach toHe3scattering

Microscopic approach toHe3scattering

Structure of the Hoyle State of ¹²C Extracted from Reaction Observables

Sign Of Enhanced Three Alpha Matter Radius In Alpha + 12C Inelastic Scattering

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Microscopic optical potentials forHe4scattering

Cited by 59 publications

References 74 publications

Microscopic approach toHe3scattering

Microscopic approach toHe3scattering

Structure of the Hoyle State of 12C Extracted from Reaction Observables

Sign Of Enhanced Three Alpha Matter Radius In Alpha + 12C Inelastic Scattering

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Structure of the Hoyle State of ¹²C Extracted from Reaction Observables