The Energy Level Density and Partition Function of Nuclei

1949 ◽  
Vol 76 (10) ◽  
pp. 1525-1526 ◽  
Author(s):  
D. Ter Haar
Keyword(s):  
Partition Function ◽  
Energy Level ◽  
Level Density

"Universality" of Gaussian orthogonal ensemble fluctuations: the two-body random ensemble and shell model spectra

1990 ◽  
Vol 68 (3) ◽  
pp. 301-312 ◽  
Author(s):  
Gaetan J. H. Laberge ◽  
Rizwan U. Haq
Keyword(s):  
Energy Level ◽  
Shell Model ◽  
Detailed Analysis ◽  
Close Agreement ◽  
Level Density ◽  
Nuclear Interactions ◽  
Gaussian Orthogonal Ensemble ◽  
Random Hamiltonians

Starting from an appropriate decomposition of the level density into an average and fluctuating part, we studied the energy level fluctuations of an ensemble defined by two-body random Hamiltonians. A detailed analysis of several spectrally averaged fluctuation measures shows close agreement with the predictions of the Gaussian orthogonal ensemble (GOE). This confirms earlier indications that, except for noninteracting particles, fluctuation measures are insensitive to the rank of the interaction. Further, analysis of spectra obtained from realistic nuclear interactions agrees well with the GOE indicating that specific properties of the Hamiltonian have little or no influence on fluctuations. These results, therefore, strengthen our belief in the "universality" of GOE fluctuations.

Energy level density of nuclei

1992 ◽  
Vol 539 (1) ◽  
pp. 17-36 ◽  
Author(s):  
Shalom Shlomo
Keyword(s):  
Energy Level ◽  
Level Density

Anomaly in Energy Level Density Measurements

1956 ◽  
Vol 102 (5) ◽  
pp. 1364-1365 ◽  
Author(s):  
G. Igo ◽  
H. E. Wegner
Keyword(s):  
Energy Level ◽  
Level Density ◽  
Density Measurements

Vibration‐Rotation Energy‐Level Density Calculations

1968 ◽  
Vol 48 (3) ◽  
pp. 1427-1429 ◽  
Author(s):  
D. C. Tardy ◽  
B. S. Rabinovitch ◽  
G. Z. Whitten
Keyword(s):  
Energy Level ◽  
Level Density ◽  
Vibration Rotation ◽  
Rotation Energy

Partition function and the level density of the hindered rotor

1997 ◽  
Vol 273 (5-6) ◽  
pp. 304-310 ◽  
Author(s):  
W. Witschel ◽  
C. Hartwigsen
Keyword(s):  
Partition Function ◽  
Level Density

Width of fission-fragment mass yield at simple statistical approach

2018 ◽  
Vol 27 (01) ◽  
pp. 1850002
Author(s):  
V. Yu. Denisov ◽  
O. A. Belyanovska ◽  
V. P. Khomenkov ◽  
I. Yu. Sedykh ◽  
K. M. Sukhyy
Keyword(s):  
Energy Level ◽  
Fission Fragment ◽  
Statistical Approach ◽  
Level Density ◽  
Simple Expression ◽  
Density Parameter ◽  
Mass Yield ◽  
Excitation Energies ◽  
Level Density Parameter ◽  
Fragment Mass

Simple expression for the temperature dependence of the width of fission-fragment mass yields is obtained for high excitation energies. The width depends on the number of nucleons in nuclei, the volume and surface terms of the energy level density parameter, the temperature and the stiffness parameter of the potential related to mass-asymmetric degree of freedom. The contribution of the surface term of the energy level density parameter into the width is important at temperatures [Formula: see text][Formula: see text]MeV.

Sign in / Sign up

Export Citation Format

Share Document