“…For highly-excited resonant states, other configurations with excited cluster and/or excited core would exist, which decreases the preformation factor of the interested channel, and consequently reduces the corresponding decay width. For the resonant states in the energy range of ≈ 23 − 34 MeV, however, all the experiments [15][16][17][18][19][20][21][22][23][24][25][26] We can further analyze the effect on the width from other possible channels. The Therefore, for width calculations in the energy range studied, contributions from excited channels should be negligible.…”