Results 11 to 20 of about 13,614,081 (295)

Nuclear level density predictions [PDF]

open access: yesEPJ Web of Conferences, 2015
Simple formulas depending only on nuclear masses were previously proposed for the parameters of the Back-Shifted Fermi Gas (BSFG) model and of the Constant Temperature (CT) model of the nuclear level density, respectively.
Bucurescu Dorel, von Egidy Till
doaj   +3 more sources

Nuclear level density and related physics

open access: yesEPJ Web of Conferences, 2018
The knowledge of the level density as a function of excitation energy and nuclear spin is necessary for the description of nuclear reactions and in many applied areas.
Zelevinsky Vladimir, Karampagia Sofia
doaj   +2 more sources

Search for isospin effects on nuclear level density

open access: yesEPJ Web of Conferences, 2010
Studies on the isospin dependence of the level density have been recently reported in the literature for nuclei with 20 ≤ A ≤ 110. Corrections to the level density have been deduced which would imply a significant reduction of this quantity for nuclei ...
Lucarelli F.   +12 more
doaj   +2 more sources

Stochastic estimation of level density in nuclear shell-model calculations

open access: yesEPJ Web of Conferences, 2016
An estimation method of the nuclear level density stochastically based on nuclear shell-model calculations is introduced. In order to count the number of the eigen-values of the shell-model Hamiltonian matrix, we perform the contour integral of the ...
Shimizu Noritaka   +5 more
doaj   +2 more sources

Stochastic estimation of nuclear level density in the nuclear shell model: An application to parity-dependent level density in 58Ni

open access: yesPhysics Letters B, 2016
We introduce a novel method to obtain level densities in large-scale shell-model calculations. Our method is a stochastic estimation of eigenvalue count based on a shifted Krylov-subspace method, which enables us to obtain level densities of huge ...
Noritaka Shimizu   +5 more
doaj   +3 more sources

Investigation of the effects of nuclear level density parameters on the cross sections for the 234U(γ,f) reaction [PDF]

open access: yesEPJ Web of Conferences, 2015
In this study, we have investigated the effects of nuclear level density parameters on the cross sections for the 234U(γ,f) reaction up to 20 MeV. The cross sections on 234U(γ,f) reaction were calculated for different level density models using the TALYS
Pekdogan Hakan   +2 more
doaj   +2 more sources

Constrained model assumptions using recent data of α-particle reactions on 144Sm

open access: yesFrontiers in Physics, 2023
Analysis of the latest high–precision cross sections of (α,γ) and (α,n) reactions on 144Sm below the Coulomb barrier is carried out using a consistent parameter set of the statistical model.
Vlad Avrigeanu, Marilena Avrigeanu
doaj   +1 more source

Parity Dependence of Nuclear Level Densities [PDF]

open access: yesPhysical Review Letters, 2000
A simple formula for the ratio of the number of odd- and even-parity states as a function of temperature is derived. This formula is used to calculate the ratio of level densities of opposite parities as a function of excitation energy. We test the formula with quantum Monte Carlo shell model calculations in the $(pf+g_{9/2})$-shell.
Alhassid, Y.   +3 more
openaire   +3 more sources

Development of Nuclear Level Density Database using data from different experimental techniques.

open access: yes, 2023
This project attempts to eliminate uncertainties associated with nuclear level density ...
Rathi, Chirag
core   +2 more sources

Theoretical Calculations of the Cross-sections for (n,α) and (n,xα) reactions on the Structural Material for Fusion Reactor 46-50Ti

open access: yesIraqi Journal of Physics, 2021
The biggest problem of structural materials for fusion reactor is the damage caused by the fusion product neutrons to the structural material. If this problem is overcomed, an important milestone will be left behind in fusion energy. One of the important
Rıdvan Baldık
doaj   +1 more source

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