We analyzed the reaction and neutron removal cross sections for
14,15,16C scattering by the
continuum-discretized coupled-channels and eikonal reaction theory. In the analysis, breakup
15 C is significant to reproduce the experimental data. For 16 C, we found that main
configuration of the ground state is the d-dominant, in which the valence two neutrons are in the
0d 5/2 -orbit. We also investigated validity of the new definition of H . In higher incident energies,
we confirmed that the new definition is useful.