In 2015, researchers in the high energy nuclear physics group at IMP have carried out their research work in the field of hadron physics. The progresses of these researches are given briefly as follows. We have studied the ??p!D??D0p reaction within an effective Lagrangian approach and the resonance model[1].The contribution of the Λ+ c (2940) state decaying into D0p has been considered. It is shown that the ??p!D??D0p reaction is good to study the un-established Λ+ c (2940) state. The obtained results could be tested by future experimental measurements.