scholarly journals Verification of models for calculation of E1 radiative strength function

2008 ◽  
Author(s):  
Vladimir A Plujko
Keyword(s):  
Strength Function ◽  
Radiative Strength Function ◽  
Verification Of Models

COMPARISON AND TESTING OF METHODS FOR E1 STRENGTH CALCULATIONS

2006 ◽  
Vol 15 (02) ◽  
pp. 387-392 ◽  
Author(s):  
V. A. PLUJKO ◽  
I. M. KADENKO ◽  
O. A. BEZSHYYKO ◽  
L. O. GOLINKA-BEZSHYYKO ◽  
O. I. DAVIDOVSKAYA
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Strength Function ◽  
Atomic Nuclei ◽  
Radiative Strength Function ◽  
Function Models ◽  
Stability Line

Extensive comparisons of E1 strength calculations within framework of the various methods are performed in atomic nuclei near beta-stability line. Photoabsorption cross-sections are calculated and compared with experimental data to test radiative strength function models.

scholarly journals Testing the modified dependence of the radiative strength function on different excitation energies in the light nucleus 28Al

2018 ◽  
Vol 39 (1) ◽  
pp. 47-63
Author(s):  
D. Knezevic ◽  
N. Jovancevic ◽  
A. M. Sukhovoj ◽  
L.V. Mitsyna
Keyword(s):  
Radiative Capture ◽  
Level Density ◽  
Strength Function ◽  
Mean Value ◽  
Excitation Energies ◽  
Radiative Strength Function ◽  
The Mean ◽  
Strength Functions ◽  
Gamma Transitions ◽  
New Hypothesis

Abstract The spectrum of random functions of level density as well as radiative strength functions of dipole E1- and M1-transitions of 28Al were determined. Obtained functions can reproduce very precisely the intensity of the two-step cascade following the radiative capture of thermal neutrons for a given energy of the primary transitions. The density of the observed intermediate levels can be reproduced correctly using the mean value of these functions. In this work we proposed a new hypothesis about the dependence of radiative strength functions for gamma-transitions in heated nucleus on the energy of excited levels. The results provide a solid basis that this new hypothesis allows to get realistic estimation on the parameters of nuclear structure in any nucleus, including the light ones.

LORENTZIAN-LIKE MODELS OF E1 RADIATIVE STRENGTH FUNCTIONS

2009 ◽  
Vol 18 (04) ◽  
pp. 996-1001 ◽  
Author(s):  
V. A. PLUJKO ◽  
O. M. GORBACHENKO ◽  
E. V. KULICH
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Giant Dipole Resonance ◽  
Theoretical Calculations ◽  
Strength Function ◽  
Resonance Parameters ◽  
Dipole Resonance ◽  
Radiative Strength Function ◽  
Asymmetric Shape ◽  
Strength Functions

Photoabsorption cross sections and dipole γ-decay strength functions are calculated and compared with experimental data to test Lorentzian-like models of their description in the middle-weight and heavy atomic nuclei. Approaches with asymmetric shape of the radiative strength function are recommended for overall estimation of the dipole γ-strengths. The ready-to-use table of giant dipole resonance parameters and their errors are obtained from fitting the theoretical calculations for photoabsorption cross sections to the experimental data. Systematics for giant dipole resonance parameters are given.

Radiative strength function and the pygmy dipole resonance in 208Pb and 70Ni

JETP Letters ◽  
2016 ◽  
Vol 104 (6) ◽  
pp. 374-379 ◽  
Author(s):  
O. I. Achakovskiy ◽  
S. P. Kamerdzhiev ◽  
V. I. Tselyaev
Keyword(s):  
Strength Function ◽  
Dipole Resonance ◽  
Pygmy Dipole Resonance ◽  
Radiative Strength Function
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