Diffusion des protons polarisés sur 24Mg, 27Al et 32S et anomalies dans la région des résonances géantes de l'25Al, du 28Si et du 33C1

doi:10.1016/0375-9474(83)90504-3

Nuclear Physics A

Volume 411, Issue 1, 12 December 1983, Pages 1-16

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Abstract

Differential cross-section and analyzing power angular distributions have been measured for the elastic scattering of polarized protons on ²⁴Mg, ²⁷Al and ³²S between 13 and 27 MeV. An optical model analysis has been performed and the spin-orbit potentials display significant variations in the giant resonance region of ²⁵Al, ²⁸Si and ³³C1. The ²⁴Mg and ³²S data have been examined in a phase-shift analysis.

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Cited by (15)

Double differential cross sections of light charged particle emission of n + 27Al reaction
2013, Annals of Nuclear Energy
Citation Excerpt :
The best neutron optical model potential parameters have been obtained to fit the experimental data of total, nonelastic, elastic cross sections and elastic scattering angular distributions (Han et al., 2012). The optical potential parameters for proton are obtained from the experimental data (Goloskie and Strauch, 1963; Dietrich et al., 2002; Okumura et al., 2002; Mcgill et al., 1974; Menet et al., 1971; Crawley, 1968; Dittman et al., 1969; Gerstein et al., 1957; Roy et al., 1983; Johansson et al., 1961) for p + 27Al reaction. The optical potential parameters for deuteron are taken from Han’s results (Han et al., 2006).
All cross sections, angular distributions, energy spectra and double differential cross sections are consistently calculated and analyzed for n + ²⁷Al reaction at incident neutron energies below 200 MeV based on the nuclear theoretical models. The optical model, the unified Hauser–Feshbach theory and the exciton model which includes the improved Iwamoto–Harada model, and the distorted wave Born approximation theory are used. Theoretical calculated results of the energy spectra and double differential cross sections of proton, deuteron, triton, helium and alpha-particle emissions are compared with the experimental data.
Global dispersive optical model potential for proton as projectile in the energy region up to 200 MeV
2008, Nuclear Physics A
Energy levels of A = 21-44 nuclei (VII)
1990, Nuclear Physics, Section A
The experimentally determined properties of A = 21–44 nuclides are complied and evaluated with special emphasis on nuclear spectroscopy.
Separate tables for each of the nuclides reviewed present the available information about the following properties (in this order):
- •
  - excitation energies E_x,
- •
  - γ-ray branching ratios b(γ),
- •
  - γ-ray mixing ratios σ,
- •
  - lifetimes γ_m or widths Λ,
- •
  - neutron, proton, or α-particle resonances,
- •
  - partial widths,
- •
  - single-nucleon transfer reactions,
- •
  - beta-decay,
- •
  - arguments for spin and parity (J^π) and isospin (T) assignments.
For each nuclide a master table summarizing the “best” or adopted values for E_x, J^π; T and τ_m or Λ precedes the auxiliary tables listed above.
The review of each A-chain concludes with a discussion of isospin multiplets.
Figures are presented of the level schemes of all nuclei and, for each A-chain, an overview of the relative energies of the ground states and lowest analogue states of all nuclei in the chain.
Optical model analysis of 14 to 40 MeV neutron elastic scattering from 27Al, 28Si and 32S
1987, Nuclear Physics, Section A
An optical model analysis of 14 to 40 MeV neutrons elastic scattering from 2s-1d shell nuclei ²⁷Al, ²⁸Si and ³²S is described. A set of spherical optical model parameters is presented for each nucleus. A regional neutron optical model, valid for nuclei near the center of the 2s-1d shell, is proposed. A comparison between neutron and relevant proton data, which entailed the analysis of the latter, confirms earlier determinations of the Coulomb correction term to the real potential and of the strength of the real isospin potential.
Density and Energy Dependent Semi-Microscopic Optical Potential of Nucleon- Nucleus Elastic Scattering
2024, SSRN
Measurement and analysis of nuclear γ -ray production cross sections in proton interactions with Mg, Si, and Fe nuclei abundant in astrophysical sites over the incident energy range E=30-66 MeV
2020, Physical Review C

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^†: Présentement au Départment d'Informatique, Université Laval.

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Nuclear Physics A

Abstract

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Nucl. Phys.

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Cited by (15)

Double differential cross sections of light charged particle emission of n + <sup>27</sup>Al reaction

Global dispersive optical model potential for proton as projectile in the energy region up to 200 MeV

Energy levels of A = 21-44 nuclei (VII)

Optical model analysis of 14 to 40 MeV neutron elastic scattering from <sup>27</sup>Al, <sup>28</sup>Si and <sup>32</sup>S

Density and Energy Dependent Semi-Microscopic Optical Potential of Nucleon- Nucleus Elastic Scattering

Measurement and analysis of nuclear γ -ray production cross sections in proton interactions with Mg, Si, and Fe nuclei abundant in astrophysical sites over the incident energy range E=30-66 MeV