[Journal of the Physical Society of Japan Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016) - Kyoto, Japan (July 25-30, 2016)] Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016) - Excitation Spectra of Carbon Nuclei near \(\eta '\) Emission Threshold