Comparison of elastic electron or positron scattering from proton-rich nuclei

Abstract

We investigate the cross sections of the elastic electron or positron scattering from ${}^{208}$Pb, ${}^{12}$C, ${}^{12,16}$O and ${}^{28,32}$S by the relativistic partial-wave expansion method using the static charge density distribution from the self-consistent relativistic mean field model and also calculate the charge form factor for ${}^{12,16}$O and ${}^{28,32}$S. The numerical results are compared with the available data. Calculations indicate that the extended charge density distributions of ${}^{12}$O and ${}^{28}$S have observable effects on the cross sections of the electron or positron scattering as well as the charge form factors.

Comments: 4 pages, 5 figures