Comparison of Practical Expressions for E1 Photon Strength Functions
Oleksandr Gorbachenko, Igor Kadenko, Vladimir Plujko, Kateryna, Solodovnyk
TL;DR
This paper evaluates various practical formulas for E1 photon strength functions by comparing theoretical Lorentzian models with gamma-decay data, finding the Simple Modified Lorentzian model provides the best fit.
Contribution
It systematically tests and compares different practical expressions for E1 photon strength functions against experimental gamma-decay data.
Findings
Simple Modified Lorentzian model shows good agreement with data
Least-square and RMS deviation criteria used for model evaluation
Lorentzian models effectively describe E1 photon strength functions
Abstract
The closed-form expressions for the photon strength functions (PSF) are tested using the gamma-decay data of OSLO group. The theoretical calculations are performed for the Lorentzian models of PSF for electric and magnetic dipole gamma-rays. The criteria of minimum of least-square value as well as the root-mean-square deviation factor are used. It is shown that a rather good agreement is obtained within the Simple Modified Lorentzian model for E1 PSF modelling.
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