Comparison of Practical Expressions for 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.

Comments: 4 pages, 2 figures, talk R024 given at "2019 International Conference on Nuclear Data for Science and Technology (ND2019)", 19-24 May 2019, Beijing, China