npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041
Qrcode

Article

Research Paper

New Phys.: Sae Mulli 2018; 68: 1331-1337

Published online December 31, 2018 https://doi.org/10.3938/NPSM.68.1331

Copyright © New Physics: Sae Mulli.

Phase Shift Analysis of $^{6}$Li Elastic Scattering on $^{12}$C and $^{28}$Si at $E_{lab}$ = 318 MeV

Yong Joo KIM*

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

Correspondence to:yjkim@jejunu.ac.kr

Received: September 11, 2018; Accepted: October 10, 2018

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

We present a three-parameter phase shift model whose form is the same as that of Coulomb-modified Glauber model obtained from Gaussian nuclear densities. This model is applied to the $^{6}$Li + $^{12}$C and the $^{6}$Li + $^{28}$Si elastic scatterings at $E_{lab}$ = 318 MeV. The calculated differential cross sections provide quite a satisfactory account of the experimental data. The diffractive oscillatory structures observed at forward angles can be explained as being due to the strong interference between the near-side and the far-side scattering amplitudes. The optical potentials for two systems are predicted by using the method of inversion. The calculated inversion potentials are found to be in fairly good agreements with the results determined from the optical model analysis in the surface regions around the strong absorption radius. We also investigate the effects of parameters in the three-parameter phase shift model on the elastic scattering cross sections.

Keywords: Three-parameter phase shift model, Coulomb-modified Glauber model, McIntyre parametrized phase shift model, Phase shift analysis, $^{6}$Li elastic scattering