Reaction cross sections of $^{14}$B and $^{8}$He on proton targets for the separation of proton and neutron density distributions

In order to discuss the exotic surface structures of neutron- / proton-rich nuclei such as halo and skin in detail, it is important to clarify the distributions of neutron and proton respectively. For this purpose, we utilize the isospin (p-p or p-n) asymmetry of nucleon-nucleon total cross sections in the intermediate energy region. We employed a Proton target as the isospin asymmetric target, which is the most asymmetric one. Also, we employed Be, C, and Al targets which are isospin symmetric to be contrast with Proton target. In the present work, we have measured reaction cross sections for $^{14}$B and $^{8}$He on Proton, Be, C, and Al targets at intermediate energies. The experiments were carried out at the HIMAC heavy ion synchrotron facility, Japan. We will report results of the analyses.