Analysis of neutron+nucleus scattering data with nonlocal optical potentials based on the resonating-group formulation

1992 ◽  
Vol 46 (1) ◽  
pp. 298-305 ◽  
Author(s):  
T. Kaneko ◽  
M. LeMere ◽  
Y. C. Tang
Keyword(s):  
Scattering Data ◽  
Optical Potentials ◽  
Nucleus Scattering

Theoretical Evaluation of Neutron-nucleus Scattering Parameters from Experimental Data in the 6 ≤ A ≤ 60 Mass Region

1998 ◽  
Vol 53 (10-11) ◽  
pp. 855-862 ◽  
Author(s):  
A. Aleksejevs ◽  
S. Barkanova ◽  
J. Tambergs ◽  
T. Krasta ◽  
W. Waschkowski ◽  
...  
Keyword(s):  
Cross Sections ◽  
Mass Region ◽  
Scattering Data ◽  
Matrix Formalism ◽  
Scattering Parameters ◽  
Theoretical Evaluation ◽  
Least Squares Fit ◽  
Optical Model Potential ◽  
Nucleus Scattering ◽  
Scattering Lengths

AbstractSystematic calculations of the neutron-nucleus scattering parameters at several neutron energies Ei < 2 keV have been performed for 37 isotopes (6Li,... 59Co) in the mass region of 6 ≤ A ≤ 60, using the large compilation of experimental neutron-nucleus scattering data obtained in Garching. In the first stage of these calculations, the s-wave potential scattering radius R’, the scattering lengths bcoh, b±, and the bound state parameters (Eb, Γγ , gΓ0n) have been calculated for each isotope, employing the general least squares fit (GLSQF) for the experimental and the corresponding theoretical values of the total neutron-nucleus cross sections σexptot(Ei) at several energies Ei, absorption cross sections σabs(Eo) and of the coherent scattering lengths bcoh. The theoretical expressions for these parameters were deduced on the basis of the usual S-matrix formalism with no assumption about the particular shape of the optical model potential. In the second stage of our calculations, the spherical Fiedeldey- Frahn optical potential was employed for the pure theoretical description or the above mentioned neutron-nucleus scattering characteristics. The results obtained have been analyzed and compared with the values deduced from measurements.

scholarly journals Recent Developments in Neutrino/Antineutrino-Nucleus Interactions

2012 ◽  
Vol 2012 ◽  
pp. 1-35 ◽  
Author(s):  
Jorge G. Morfín ◽  
Juan Nieves ◽  
Jan T. Sobczyk
Keyword(s):  
Energy Range ◽  
Cross Sections ◽  
Scattering Data ◽  
Theoretical Treatment ◽  
Quasielastic Scattering ◽  
Current Contribution ◽  
The Status ◽  
Recent Developments ◽  
Nucleus Scattering ◽  
Nuclear Effects

Recent experimental results and developments in the theoretical treatment of neutrino-nucleus interactions in the energy range of 1–10 GeV are discussed. Difficulties in extracting neutrino-nucleon cross sections from neutrino-nucleus scattering data are explained and significance of understanding nuclear effects for neutrino oscillation experiments is stressed. Detailed discussions of the status of two-body current contribution in the kinematic region dominated by quasielastic scattering and specific features of partonic nuclear effects in weak DIS scattering are presented.

scholarly journals Optical Potentials: Microscopic vs. Phenomenological Approaches

2019 ◽  
Vol 223 ◽  
pp. 01015
Author(s):  
Paolo Finelli ◽  
Matteo Vorabbi ◽  
Carlotta Giusti
Keyword(s):  
Optical Potential ◽  
Lead Isotopes ◽  
Nucleon Nucleon ◽  
Chiral Expansion ◽  
Scattering Data ◽  
Proton Scattering ◽  
Optical Potentials ◽  
Elastic Proton ◽  
Microscopic Optical Potential ◽  
Fifth Order

In this work we study the performances of our microscopic optical potential [1, 2], derived from nucleon-nucleon chiral potentials at fifth order (N4LO), in comparison with those of a successful non-relativistic phenomenological optical potential in the description of elastic proton scattering data on tin and lead isotopes at energies around and above 200 MeV. Our results indicate that microscopic optical potentials derived from nucleon-nucleon chiral potentials at N4LO can provide reliable predictions for observables of stable and exotic nuclei, even at energies where the robustness of the chiral expansion starts to be questionable.

Analysis of elasticα-nucleus scattering data at 240 MeV

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
M. A. Alvi ◽  
J. H. Madani ◽  
A. M. Hakmi
Keyword(s):  
Scattering Data ◽  
Nucleus Scattering

scholarly journals TESTING 6,8He DENSITY DISTRIBUTIONS BY CALCULATIONS OF TOTAL REACTION CROSS-SECTIONS OF 6,8He+28Si

2004 ◽  
Vol 13 (03) ◽  
pp. 573-583 ◽  
Author(s):  
V. K. LUKYANOV ◽  
E. V. ZEMLYANAYA ◽  
S. E. MASSEN ◽  
Ch. C. MOUSTAKIDIS ◽  
A. N. ANTONOV ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Scattering Data ◽  
Total Reaction ◽  
Density Distributions ◽  
Intermediate Energies ◽  
Limit Model ◽  
Optical Limit ◽  
Nucleus Scattering ◽  
Reaction Cross Sections

Calculations of the 6,8 He +28 Si total reaction cross-sections at intermediate energies are performed on the basis of the Glauber–Sitenko microscopic optical-limit model. The target-nucleus density distribution is taken from the electron-nucleus scattering data, and the 6,8 He densities are used as they are derived in different models. The results of the calculations are compared with existing experimental data. The effects of the density tails of the projectile nuclei as well as the role of shell admixtures and short-range correlations are analyzed.

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