Toshio Suzuki ^1* Rika Danjo ¹ Toshimi Suda ¹ Masayuki Matsuzaki ² Tomotsugu Wakasa ³

• ¹ Tohoku University, Research Center for Accelerator and Radioisotope Science, Sendai, Japan
• ² Fukuoka University of Education, Munakata, Fukuoka, Japan
• ³ Kyushu University, Fukuoka, Japan

Electron scattering cross section, as well as proton scattering cross section, observes the point-proton and the point-neutron distributions, ρ τ (r), (τ = p, n), but both cross sections are not able to determine them separately. If they are analyzed consistently with each other, there is a possibility to determine them with less ambiguity. The consistency can be examined through the moments of the charge distribution, ρ c (r), which linearly depend on the moments of the point-proton and -neutron distributions, ρ τ (r), (τ = p, n). The fourth moment, ⟨ r 4 ⟩ c , of ρ c (r) in 208 Pb observed in electron scattering is well reproduced by the mean square radii, ⟨ r 2 ⟩ τ , of ρ τ (r) obtained consistently in the non-relativistic analyses of electron-and proton-scattering cross sections. The regression analyses of the non-relativistic mean-field models reproduce well those values of the moments.