Prospective study on microscopic potential with Gogny interaction

Blanchon, G.; Dupuis, Marc; Arellano, H. F.

doi:10.1140/epja/i2015-15165-1

Cited by 14 publications

(37 citation statements)

References 67 publications

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“…The label λ refers to the single-particle state of the intermediate particle [15]. E N and Γ (E N ) represent the energy and the width of the N th excited state of the target, respectively.…”

Section: Nuclear Structure Methodsmentioning

confidence: 99%

“…NSM has been applied to neutron and proton scattering off 40−48 Ca using Gogny D1S interaction. We focus on incident energies below 40 MeV where NSM has demonstrated to be efficient [9,15]. Results are summarized in Figs.…”

Section: Microscopic Potential and Reaction Datamentioning

confidence: 99%

“…In previous attempts [9,15], Nuclear Structure Method (NSM) [7] has been successfully applied to describe nucleon scattering off 40 Ca using Gogny D1S interaction as sole input. This method is based on Green's function formalism.…”

Section: Introductionmentioning

confidence: 99%

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Asymmetry dependence of Gogny-based optical potential

et al. 2017

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Abstract. An analysis of neutron and proton scattering off 40,48 Ca has been carried out. Real and imaginary potentials have been generated using the Nuclear Structure Method for scattering with the Gogny D1S nucleon-nucleon effective interaction. Observables are well described by NSM for neutron and proton elastic scattering off 40 Ca and for neutron scattering off 48 Ca. For proton scattering off 48 Ca, NSM yields a lack of absorption. This discrepancy is attributed to double-charge-exchange contribution and coupling to GamowTeller mode which are not included in the present version of NSM. A recipe based on a Perey-Buck fit of NSM imaginary potential and Lane model is proposed to overcome this issue in an approximate way. PACS. PACS-key describing text of that key -PACS-key describing text of that key

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Section: Nuclear Structure Methodsmentioning

confidence: 99%

Section: Microscopic Potential and Reaction Datamentioning

confidence: 99%

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Asymmetry dependence of Gogny-based optical potential

et al. 2017

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“…Most of the contribution to the total EB and NEB cross sections comes from = 0 to 4. In Fig.5 we show the angular momentum decomposition for the elastic component of (a) 40 Ca(d, p), (b) 48 Ca(d, p) and (c) 60 Ca(d, p) at E d = 40 MeV. The contribution from = 0 (solid black) is small for all cases.…”

Section: Application To the Ca Isotopic Chainmentioning

confidence: 99%

Toward a complete theory for predicting inclusive deuteron breakup away from stability

et al. 2017

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We present an account of the current status of the theoretical treatment of inclusive (d, p) reactions in the breakup-fusion formalism, pointing to some applications and making the connection with current experimental capabilities. Three independent implementations of the reaction formalism have been recently developed, making use of different numerical strategies. The codes also originally relied on two different but equivalent representations, namely the prior (Udagawa-Tamura, UT) and the post (Ichimura-Austern-Vincent, IAV) representations. The different implementations have been benchmarked, and then applied to the Ca isotopic chain. The neutron-Ca propagator is described in the Dispersive Optical Model (DOM) framework, and the interplay between elastic breakup (EB) and non-elastic breakup (NEB) is studied for three Ca isotopes at two different bombarding energies. The accuracy of the description of different reaction observables is assessed by comparing with experimental data of (d, p) on 40,48 Ca. We discuss the predictions of the model for the extreme case of an isotope ( 60 Ca) currently unavailable experimentally, though possibly available in future facilities (nominally within production reach at FRIB). We explore the use of (d, p) reactions as surrogates for (n, γ) processes, by using the formalism to describe the compound nucleus formation in a (d, pγ) reaction as a function of excitation energy, spin, and parity. The subsequent decay is then computed within a Hauser-Feshbach formalism. Comparisons between the (d, pγ) and (n, γ) induced gamma decay spectra are discussed to inform efforts to infer neutron captures from (d, pγ) reactions. Finally, we identify areas of opportunity for future developments, and discuss a possible path toward a predictive reaction theory.

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“…For bound states when < 0, the real part of Σ( , ′, ) represents the shell model or mean-field potential. We could list the most efficient methods to calculate this selfenergy: ab initio approaches [1,2], nuclear matter approaches [3][4][5][6][7][8], and nuclear structure approaches [9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%