In 2016,the researchers of Theoretical Physics Group at IMP have carried out their research work on nuclear physics,heavy ion physics and hadron physics.Some important results have been obtained.Based on the nuclear transport model,the effect of the high-momentum cutoff parameterλon theΠand hard photon productions in heavy ion collisions has been investigated and by comparing the calculatedΠ+and hard photon productions with experimental data,a constraint of high-momentum cutoff valueλ62 is obtained[1].