NEW MEASUREMENTS OF REACTION CROSS SECTIONS AND REDUCED STRONG ABSORPTION RADII OF NEUTRON-RICH EXOTIC NUCLEI IN THE VICINITY OF CLOSED SHELLS N=20 AND N=28

2005 ◽  
Author(s):  
A. KHOUAJA ◽  
A.C.C. VILLARI ◽  
M. BENJELLOUN ◽  
D. HIRATA ◽  
SAVAJOLS ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Exotic Nuclei ◽  
Strong Absorption ◽  
Closed Shells ◽  
Reaction Cross Sections

scholarly journals Reaction cross-sections and reduced strong absorption radii of nuclei in the vicinity of closed shells N = 20 and N = 28

2005 ◽  
Vol 25 (S1) ◽  
pp. 223-226
Author(s):  
A. Khouaja ◽  
A. C. C. Villari ◽  
M. Benjelloun ◽  
G. Auger ◽  
D. Baiborodin ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Strong Absorption ◽  
Closed Shells ◽  
Reaction Cross Sections

Reaction cross sections for exotic nuclei in the Glauber approach

2001 ◽  
Vol 64 (10) ◽  
pp. 1898-1900 ◽  
Author(s):  
G. D. Alkhazov ◽  
A. A. Lobodenko
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Exotic Nuclei ◽  
Reaction Cross Sections

Notizen: Empirical Evidence for Shell Effects in (n,p)- and (n,α)-Reaction Cross Sections Induced By 14 Mev Neutrons

1972 ◽  
Vol 27 (6) ◽  
pp. 1015-1016 ◽  
Author(s):  
P. Holmberg
Keyword(s):  
Empirical Evidence ◽  
Cross Section ◽  
Cross Sections ◽  
Shell Structure ◽  
Closed Shell ◽  
Reaction Cross ◽  
Shell Effects ◽  
The Cross ◽  
Closed Shells ◽  
Reaction Cross Sections

Abstract Cross section values for (n,p)-and (n,α)-reactions have been analysed as functions of the proton and neutron numbers of the target nuclei. When these numbers equal or approach those of a closed shell structure, the cross section values tend to increase. Far from closed shells the cross sections are small.

scholarly journals Density distributions, form factors and reaction cross sections for exotic 11Be and 15C nuclei

2019 ◽  
Vol 12 (24) ◽  
pp. 10-24
Author(s):  
Ahmed N. Abdullah
Keyword(s):  
Cross Sections ◽  
Single Particle ◽  
Ground State ◽  
Form Factors ◽  
Reaction Cross ◽  
Exotic Nuclei ◽  
Wave Functions ◽  
Proton Form ◽  
Proton Form Factors ◽  
Reaction Cross Sections

The ground state proton, neutron and matter densities of exotic 11Be and 15C nuclei are studied by means of the TFSM and BCM. In TFSM, the calculations are based on using different model spaces for the core and the valence (halo) neutron. Besides single particle harmonic oscillator wave functions are employed with two different size parameters  Bc and Bv.  In BCM, the halo nucleus is considered as a composite projectile consisting of core and valence clusters bounded in a state of relative motion. The internal densities of the clusters are described by single particle Gaussian wave functions.  Elastic electron scattering proton form factors for these exotic nuclei are analyzed via the plane wave born approximation (PWBA). As the calculations in the BCM do not distinguish between protons and neutrons, the calculations of the proton form factors are restricted only by the TFSM. The reaction cross sections for these exotic nuclei are studied by means of the Glauber model with an optical limit approximation using the ground state densities of the projectile and target, where these densities are described by single Gaussian functions. The calculated reaction cross sections at high energy are in agreement with the experimental data.

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