Results 171 to 180 of about 536,195 (200)

Nuclear level densities and level spacing distributions

1986
Extensive and complete level schemes and neutron resonance densities of 72 nuclides have been used to determine the spin cut-off parameter, parameters for level density formulae and level spacing distributions. The level spacing distributions indicate either very different nuclear structures or the existence of a further good quantum number at low ...
T. von Egidy, A. N. Behkami, H. H. Schmidt   +2 more
openaire   +1 more source

Nuclear level density with schematic forces

Physical Review C, 1978
For a system of fermions interaction via a pure pairing force, exact level densities are obtained in a semirealistic model space. The results are transmitted through graphs and tables so that they are readily available for comparison with various approximate methods.
B. C. Smith, F. N. Choudhury, S. Das Gupta   +2 more
openaire   +1 more source

Nuclear level densities with blocking effect

Il Nuovo Cimento A, 1981
A formalism is presented for level density calculations of odd-N and/or -Z nuclei. A comparison is made with experimental data from the analysis of neutron resonances at binding energy.
V. Benzi, G. Maino, E. Menapace
openaire   +1 more source

Level densities and nuclear thermometry

2008
AbstractBased on the Darwin-Fowler approximation various models for the many-body level density Ω are introduced, critically examined, and confronted with empirical parameterizations. This concerns both the macroscopic limit as well as the case where shell effects are included. Interpretations in the spirit of thermostatics are given.
openaire   +1 more source

Nuclear level density with interactions

1977
This item was digitized as part of a project to share McGill's intellectual legacy with the public. If you are the copyright holder or a relative of the copyright holder who is deceased, you may request withdrawal by emailing escholarship.library@mcgill.ca.
openaire   +1 more source

Nuclear Level Densities in Astrophysics

1980
The use of statistical nuclear level densities in astrophysics is briefly reviewed. Particular attention is given to the role of nuclear level density formulae in cross-section calculations for nucleosynthesis studies and to the effects of an assumed Fermi-gas model upon the properties of matter at very high temperature. The use of β-strength functions
openaire   +1 more source

Nuclear Level Densities

AIP Conference Proceedings, 2009
S. M. Grimes, A. Voinov, Jan Jolie, Andreas Zilges, Nigel Warr, Andrey Blazhev   +5 more
openaire   +1 more source

Correlation of Nuclear Level Densities and Masses

AIP Conference Proceedings, 2006
Level density parameters for 310 nuclei between 19F and 251Cf have been determined for the Back Shifted Fermi Gas and the Constant Temperature models, by fitting both low energy discrete levels and the s‐wave neutron resoance spacings. The determined parameters have been found well correlated with quantites available from the mass tables, and simple ...
openaire   +1 more source

Nuclear energy density functionals from machine learning

Physical Review C, 2022
Xin-Hui Wu, Z X Ren, P W Zhao
exaly  

Prediction of nuclear charge density distribution with feedback neural network

Nuclear Science and Techniques/Hewuli, 2022
Jian Li, Zhong-Ming Niu
exaly