Phase Shift Analysis and the Optical Potential Obtained by Using Inversion for $\alpha$ + $^{58}$Ni Elastic Scattering

Yong Joo KIM*; Seok Jae LEE

doi:10.3938/NPSM.68.55

Article

Research Paper

New Phys.: Sae Mulli 2018; 68: 55-61

Published online January 31, 2018 https://doi.org/10.3938/NPSM.68.55

Phase Shift Analysis and the Optical Potential Obtained by Using Inversion for $\alpha$ + $^{58}$Ni Elastic Scattering

Yong Joo KIM*¹, Seok Jae LEE²

¹ Department of Physics and Research Institute for Basic Sciences, Jeju National University, Jeju 63243, Korea

² Department of Biomedical Engineering, Seonam University, Namwon 55724, Korea

Correspondence to:yjkim@jejunu.ac.kr

Received: September 8, 2017; Revised: October 8, 2017; Accepted: November 10, 2017

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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Abstract

The data for the elastic scattering of 288, 340, and 386 MeV alpha particles on $^{58}$Ni was analyzed using the McIntyre parametrization for the phase shift. The calculated differential cross sections for the $\alpha$ + $^{58}$Ni system fit the experimental data fairly well. The diffractive oscillatory structures observed in the angular distributions were explained as being due to the strong interference between the near-side and the far-side scattering amplitudes. The corresponding optical potentials were predicted by using the inversion procedure of the McIntyre phase shift. The inversion potentials were then compared with the available ones obtained from optical model analyses.

Keywords: Phase shift analysis, McIntyre parametrization, Optical potential by inversion, Elastic scattering, $\alpha$ + $^{58}$Ni