De-excitations of highly excited $^{11}$B$^*$ and $^{15}$N$^*$ based on the GEMINI++ code

Abstract: Nuclear de-excitations associated with neutrino-nucleus interactions and nucleon decays are playing an increasingly significant role in neutrino experiments. We explore the GEMINI++ code and estimate its ability to account for the de-excitation processes of highly excited $<sup>{11}$B$<sup>*$ and $<sup>{15}$N$<sup>*$, which can be created in the liquid scintillator and water Cherenkov detectors respectively. It is found that GEMINI++ can not describe the nuclear experimental data of $<sup>{11}$B$<sup>*$ and $<sup>{15}$N$<sup>*$ well. To improve its performance for de-excitations of light nuclei, we modify GEMINI++ and then develop a code of GEMINI++4$\nu$, which can give the best predictions compared with experimental measurements among some widely used statistical model codes.