Energy dependence of the relativistic impulse approximation for proton-nucleus elastic scattering

1983 ◽  
Vol 28 (3) ◽  
pp. 1421-1424 ◽  
Author(s):  
B. C. Clark ◽  
S. Hama ◽  
R. L. Mercer ◽  
L. Ray ◽  
G. W. Hoffmann ◽  
...  
2019 ◽  
Vol 34 (32) ◽  
pp. 1950259 ◽  
Author(s):  
S. M. Troshin ◽  
N. E. Tyurin

We comment briefly on relations between the elastic and inelastic cross-sections valid for the shadow and reflective modes of the elastic scattering. Those are based on the unitarity arguments. It is shown that the redistribution of the probabilities of the elastic and inelastic interactions (the form of the inelastic overlap function becomes peripheral) under the reflective scattering mode can lead to increasing ratio of [Formula: see text] at the LHC energies. In the shadow scattering mode, the mechanism of this increase is a different one, since the impact parameter dependence of the inelastic interactions probability is central in this mode. A short notice is also given on the slope parameter and the leading contributions to its energy dependence in both modes.


1988 ◽  
Vol 37 (3) ◽  
pp. 1169-1182 ◽  
Author(s):  
L. Ray ◽  
G. W. Hoffmann ◽  
M. L. Barlett ◽  
J. D. Lumpe ◽  
B. C. Clark ◽  
...  

2019 ◽  
Vol 28 (10) ◽  
pp. 1950091 ◽  
Author(s):  
M. Abusini

The method of impulse approximation is used to check the validity of the first-order optical potential for the elastic scattering problem of the neutron on the bound system, namely, [Formula: see text] and [Formula: see text]at incident neutron energies of 155 and 225[Formula: see text]MeV. The optical potential is derived as the first-order term within the spectator expansion of a nonrelativistic multiple scattering terms using the Lippmann–Schwinger equation. The Modern realistic two-body potential ArgonneV18 in the momentum space was used as input in the Lippmann–Schwinger equation. The obtained results for the elastic differential cross-sections are in a good agreement with the experimental data taken from EXFOR Database for all studied targets at neutron energy above 200[Formula: see text]MeV. As the neutron energy decreases down to approximately 155[Formula: see text]MeV, the discrepancies with experimental data appear, which is in accordance with the impulse approximation formalism.


1981 ◽  
Author(s):  
D. G. Crabb ◽  
R. C. Fernow ◽  
P. H. Hansen ◽  
A. D. Krisch ◽  
B. Sandler ◽  
...  

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