Coulomb-modified Glauber model description of heavy-ion reaction cross sections

1990 ◽  
Vol 41 (4) ◽  
pp. 1610-1618 ◽  
Author(s):  
S. K. Charagi ◽  
S. K. Gupta
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Reaction Cross ◽  
Glauber Model ◽  
Model Description ◽  
Reaction Cross Sections

STRUCTURE AND REACTIONS OF NEUTRON-RICH OXYGEN ISOTOPES

2012 ◽  
Vol 21 (10) ◽  
pp. 1250083 ◽  
Author(s):  
M. RASHDAN
Keyword(s):  
Cross Sections ◽  
Mean Field ◽  
High Energy ◽  
Reaction Cross ◽  
Glauber Model ◽  
Medium Effects ◽  
Halo Structure ◽  
Density Distributions ◽  
Optical Limit ◽  
Reaction Cross Sections

The structure of 16-26 O is investigated within the relativistic mean field (RMF) as well as high-energy nuclear collisions. The reaction cross-sections of 16-24 O +12 C around 1 GeV are calculated within the multiple scattering theory, where the multiple integrals are evaluated by Monte Carlo method as well as by the optical limit approximation of the Glauber model. In-medium effects are investigated within the optical limit, where it is found to be important in order to get reliable information about nuclear radii and density distributions. The reaction cross-sections indicate to a halo structure for 23 O . This neutron halo is also found in the rms matter radii and nuclear densities especially when Fermi shape is used in the optical limit, including in-medium effects, in extracting the parameters of the density distributions from the experimental reaction cross-sections.

Trends of total reaction cross sections for heavy ion collisions in the intermediate energy range

1987 ◽  
Vol 35 (5) ◽  
pp. 1678-1691 ◽  
Author(s):  
S. Kox ◽  
A. Gamp ◽  
C. Perrin ◽  
J. Arvieux ◽  
R. Bertholet ◽  
...  
Keyword(s):  
Energy Range ◽  
Cross Sections ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Intermediate Energy ◽  
Reaction Cross ◽  
Total Reaction ◽  
Ion Collisions ◽  
Reaction Cross Sections

scholarly journals Statistical Hauser-Feshbach Model Description of (n,α) Reaction Cross Sections for the Weak s-Process

Universe ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 25
Author(s):  
Sema Küçüksucu ◽  
Mustafa Yiğit ◽  
Nils Paar
Keyword(s):  
Cross Sections ◽  
Density Functional ◽  
Experimental Studies ◽  
Reaction Cross ◽  
Model Description ◽  
Energy Density Functional ◽  
Model Calculations ◽  
Level Densities ◽  
Environment Model ◽  
Reaction Cross Sections

The (n,α) reaction contributes in many processes of energy generation and nucleosynthesis in stellar environment. Since experimental data are available for a limited number of nuclei and in restricted energy ranges, at present only theoretical studies can provide predictions for all astrophysically relevant (n,α) reaction cross sections. The purpose of this work is to study (n,α) reaction cross sections for a set of nuclei contributing in the weak s-process nucleosynthesis. Theory framework is based on the statistical Hauser-Feshbach model implemented in TALYS code with nuclear masses and level densities based on Skyrme energy density functional. In addition to the analysis of the properties of calculated (n,α) cross sections, the Maxwellian averaged cross sections are described and analyzed for the range of temperatures in stellar environment. Model calculations determined astrophysically relevant energy windows in which (n,α) reactions occur in stars. In order to reduce the uncertainties in modeling (n,α) reaction cross sections for the s-process, novel experimental studies are called for. Presented results on the effective energy windows for (n,α) reaction in weak s-process provide a guidance for the priority energy ranges in the future experimental studies.

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