Ex) Article Title, Author, Keywords
Ex) Article Title, Author, Keywords
New Physics: Sae Mulli 2014; 64: 1155-1161
Published online December 31, 2014 https://doi.org/10.3938/NPSM.64.1155
Copyright © New Physics: Sae Mulli.
Yong Joo KIM*
Department of Physics and Research Institute for Basic Sciences, Jeju National University, Jeju 690-756, Korea
Correspondence to:yjkim@jejunu.ac.kr
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.
Elastic scattering of the $^{6}$He + $^{12}$C system at 38.3 MeV/nucleon has been analyzed by extending the optical limit approximation to the Coulomb-modified Glauber model. Assuming that the $^{6}$He nucleus consists of a $^{4}$He core and two weakly-bound neutrons, we take the $^{6}$He density to be a sum of the densities of the core and the two halo neutrons. The calculated differential cross section, taking into account the halo effect, is found to be in fairly good agreement with the observed data. The oscillatory structure observed in the angular distribution can be explained as being due to the interference between the near-side and the far-side amplitudes. We investigate the halo neutrons' effects on the density, the angular distribution, the imaginary phase shift, the transparency function, and the reaction cross section. We found the introduction of the halo structure of $^{6}$He to be important in the description of $^{6}$He + $^{12}$C elastic scattering.
Keywords: Neutron-rich nucleus, Halo effect, Coulomb-modified Glauber model, Elastic scattering, Phase shift, $^{6}$He + $^{12}$C