scholarly journals The nuclear level density parameter

2019 ◽  
Vol 11 (20) ◽  
pp. 35-46
Author(s):  
Rasha S. Ahmed
Keyword(s):  
Level Density ◽  
State Density ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Excitation Energies ◽  
Nuclear Level ◽  
Level Density Parameter ◽  
Experimental Works ◽  
Experimental Values ◽  
Energy Dependent

The nuclear level density parameter  in non Equi-Spacing Model (NON-ESM), Equi-Spacing Model (ESM) and the Backshifted Energy Dependent Fermi Gas model (BSEDFG) was determined for 106 nuclei; the results are tabulated and compared with the experimental works. It was found that there are no recognizable differences between our results and the experimental -values. The calculated level density parameters have been used in computing the state density as a function of the excitation energies for 58Fe and 246Cm nuclei. The results are in a good agreement with the experimental results from earlier published work.

scholarly journals Angular momentum dependence of the nuclear level density parameter

2014 ◽  
Vol 66 ◽  
pp. 03073 ◽  
Author(s):  
M. Gohil ◽  
Pratap Roy ◽  
K. Banerjee ◽  
S. Bhattacharya ◽  
C. Bhattacharya ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Level Density ◽  
Density Parameter ◽  
Momentum Dependence ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Level Density Parameter

Nuclear level-density parameter in hot nuclei

1989 ◽  
Vol 40 (3) ◽  
pp. 1510-1512 ◽  
Author(s):  
W. E. Ormand ◽  
P. F. Bortignon ◽  
A. Bracco ◽  
R. A. Broglia
Keyword(s):  
Level Density ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Level Density Parameter ◽  
Hot Nuclei

Influence of nuclear deformation on level density parameter

2016 ◽  
Vol 31 (37) ◽  
pp. 1650211
Author(s):  
S. A. Alavi ◽  
V. Dehghani
Keyword(s):  
Single Particle ◽  
Level Density ◽  
Field Potential ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Level Density Parameter ◽  
Single Particle Level ◽  
Significant Difference ◽  
Particle Level

By using semiclassical method and considering deformed Woods–Saxon mean field potential, single-particle level density g, level density parameter a, and nuclear level density have been calculated for some deformed nuclei with deformation parameters ([Formula: see text], [Formula: see text]). Significant difference between deformed and spherical level density parameter and nuclear level density were observed. The effect of [Formula: see text] on level density parameter was notable. A simple formula for single-particle level density has been introduced.

Nuclear level density parameter—its dependence on spin and temperature

1988 ◽  
Vol 37 (1) ◽  
pp. 307-313 ◽  
Author(s):  
M. Rajasekaran ◽  
T. R. Rajasekaran ◽  
N. Arunachalam
Keyword(s):  
Level Density ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Level Density Parameter

scholarly journals Experimental investigation on the temperature dependence of the nuclear level density parameter

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Balaram Dey ◽  
Deepak Pandit ◽  
Srijit Bhattacharya ◽  
K. Banerjee ◽  
N. Quang Hung ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Temperature Dependence ◽  
Level Density ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Level Density Parameter

scholarly journals Ignatyuk damping factor: A semiclassical formula

2019 ◽  
Vol 28 (08) ◽  
pp. 1950061 ◽  
Author(s):  
Nishchal R. Dwivedi ◽  
Saniya Monga ◽  
Harjeet Kaur ◽  
Sudhir R. Jain
Keyword(s):  
Level Density ◽  
Model Fitting ◽  
Damping Factor ◽  
Density Parameter ◽  
Nuclear Level Density ◽  
Nuclear Level ◽  
Gamma Energy ◽  
Level Density Parameter ◽  
Shell Effects ◽  
Semiclassical Methods

Data on nuclear-level densities extracted from transmission data or gamma energy spectrum store the basic statistical information about nuclei at various temperatures. Generally, this extracted data goes through model fitting using computer codes like CASCADE. However, recently established semiclassical methods involving no adjustable parameters to determine the level density parameter for magic and semi-magic nuclei give a good agreement with the experimental values. One of the popular ways to paramaterize the level density parameter which includes the shell effects and its damping was given by Ignatyuk. This damping factor is usually fitted from the experimental data on nuclear-level density and it comes around 0.05 [Formula: see text]. In this work, we calculate the Ignatyuk damping factor for various nuclei using semiclassical methods.

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