Proton-nucleus elastic scattering at 156 MeV

Comparat, V.; Frascaria, R.; Marty, Nicolas; Morlet, M.; Willis, A.

doi:10.1016/0375-9474(74)90327-3

Cited by 96 publications

(39 citation statements)

References 14 publications

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“…(14,16, and 17) are listed for the local DOM using parameters from the refits where the 0g 9/2 level energies are exactly reproduced. The increase in the continuum contribution of the occupation number ends with 130 Sn, on account of the larger gap between particle and hole states for the double-closed shell nucleus 132 Sn as discussed earlier. We note that the reduction of the g 9/2 spectroscopic factor with increasing neutron number is accompanied by a weaker reduction of the occupation number.…”

Section: Occupation Probabilitiesmentioning

confidence: 99%

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Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

et al. 2011

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Neutron elastic-scattering angular distributions were measured at beam energies of 11.9 and 16.9 MeV on 40,48 Ca targets. These data plus other elastic-scattering measurements, total and reaction cross sections measurements, (e, e ′ p) data, and single-particle energies for magic and doubly magic nuclei have been analyzed in the dispersive optical model (DOM) generating nucleon self-energies (optical-model potentials) which can be related, via the many-body Dyson equation, to spectroscopioc factors and occupation probabilities. It is found that for stable nuclei with N ≥ Z, the imaginary surface potential for protons exhibits a strong dependence on the neutron-proton asymmetry. This result leads to a more modest dependence of the spectroscopic factors on asymmetry. The measured data and the DOM analysis of all considered nuclei clearly demonstrates that the neutron imaginary surface potential displays very little dependence on the neutron-proton asymmetry for nuclei near stability (N ≥ Z).

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Section: Occupation Probabilitiesmentioning

confidence: 99%

“…In Fig. 25 we also show some extrapolated spectroscopic factors for proton 0g 9/2 levels in 102 Sn, 106 Sn, 130 Sn, and 132 Sn. To obtain these we used a linear extrapolation of the W sur max values in Fig.…”

Section: Spectroscopic Factorsmentioning

confidence: 99%

Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

et al. 2011

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“…Experimental data are taken from Refs. [13,[70][71][72][73][74][75][76][77][78][79][80][81][82][83][84].…”

Section: Fig 11 Elastic Differential Cross Sections Of P +mentioning

confidence: 99%

Extracting nuclear sizes of medium to heavy nuclei from total reaction cross sections

et al. 2016

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Background: Proton and neutron radii are fundamental quantities of atomic nuclei. To study the sizes of short-lived unstable nuclei, there is a need for an alternative to electron scattering. Purpose: The recent paper by Horiuchi et al. [Phys. Rev. C 89, 011601(R) (2014)] proposed a possible way of extracting the matter and neutron-skin thickness of light-to medium-mass nuclei using total reaction cross section, σ R . The analysis is extended to medium to heavy nuclei up to lead isotopes with due attention to Coulomb breakup contributions as well as density distributions improved by paring correlation. Methods:We formulate a quantitative calculation of σ R based on the Glauber model including the Coulomb breakup. To substantiate the treatment of the Coulomb breakup, we also evaluate the Coulomb breakup cross section due to the electric dipole field in a canonical-basis-time-dependent-Hartree-Fock-Bogoliubov theory in the three-dimensional coordinate space. Results: We analyze σ R 's of 103 nuclei with Z = 20, 28, 40, 50, 70, and 82 incident on light targets, 1,2 H, 4 He, and 12 C. Three kinds of Skyrme interactions are tested to generate those wave functions. To discuss possible uncertainty due to the Coulomb breakup, we examine its dependence on the target, the incident energy, and the Skyrme interaction. The proton is a most promising target for extracting the nuclear sizes as the Coulomb excitation can safely be neglected. We find that the so-called reaction radius, a R = √ σ R /π, for the proton target is very well approximated by a linear function of two variables, the matter radius and the skin thickness, in which three constants depend only on the incident energy. We quantify the accuracy of σ R measurements needed to extract the nuclear sizes. Conclusions:The proton is the best target because, once the incident energy is set, its a R is very accurately determined by only the matter radius and neutron-skin thickness. If σ R 's at different incident energies are measured, one can determine both the proton and neutron radii for unstable nuclei as well. The total reaction cross sections calculated in this paper are given as Supplemental Material for the sake of future measurements.

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“…The comparison of calculated results of elastic scattering angular distributions with experimental data [37][38][39][40][41][42][43][44][45][46][47][48][49] for p+ 56 Fe reaction is given in Figs. 3-5. The calculated results are in good agreement with experimental data.…”

Section: Theoretical Results and Analysismentioning

confidence: 99%

“…Calculated proton elastic scattering angular distribution (solid line) compared with experimental data (symbols)[41][42][43][44][45] for p+56 Fe reaction. The results are offset by factors of 10.…”

mentioning

confidence: 99%

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

Han¹,

Yue²,

Guo³

2007

Nuclear Instruments and Methods in Physics Research Section B:

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Proton-nucleus elastic scattering at 156 MeV

Cited by 96 publications

References 14 publications

Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

Extracting nuclear sizes of medium to heavy nuclei from total reaction cross sections

Calculation and evaluation of cross-sections for p+54,56,57,58,natFe reactions up to 250MeV

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