We implement the de-excitation processes of residual nuclei associated with proton decays in $^{ 12} { \rm C}$ based on the GENIE generator and TALYS code. To derive the reasonable excitation energy spectra of residual nuclei $^{ 11} { \rm B}$, $^{ 10} { \rm B}$ and $^{ 10} { \rm Be}$, the default GENIE nucleon decay generator is modified in terms of the Spectral Function nuclear model. Then we use the TALYS code to estimate the de-excitation processes of residual nuclei. The TALYS calculation can partly account for the experimental data.
Categories: nucl-th hep-ex hep-ph nucl-ex