暗物质是宇宙的第二大组成成分，而暗物质粒子的本质和相互作用还不得而知。申请人拟进行的研究将围绕WIMPs暗物质的多信使搜寻展开。申请人将仔细研究电荷依赖的太阳调制效应、空间依赖的宇宙线传播和反质子产生截面的不确定性对AMS-02疑似反质子超出（反质子超）的影响；改进DAMPE电子数据的分析方法，提高鉴别效率，降低测量误差，并基于改进的结果检验解释反质子超的暗物质模型或者搜寻其在正负电子能谱中可能的对应结构；结合Fermi和DAMPE伽马射线数据研究矮椭球星系的伽马射线辐射，进而检验反质子超的真实性及其暗物质解释；通过射电和X射线对矮椭球星系的观测结果来寻找暗物质湮灭或衰变信号。通过系统研究宇宙线反质子、电子、伽马射线以及多波段电磁辐射等数据，寻找这些不同数据之间的联系，以综合、自洽的方式从多种数据中搜寻暗物质信号或对暗物质模型给出限制。

Dark matter is the second largest component of the universe, while the nature and interaction of dark matter particles are still unknown. The applicant will focus on the multi-messenger search of WIMPs dark matter. The planned researches include: 1) carefully study the effects of charge-dependent solar modulation effect, space-dependent cosmic ray propagation and uncertainty of antiproton production cross section on AMS-02 potential antiproton excess(antiproton excess); 2) improve the DAMPE electron data analysis in order to increase the identification efficiency and reduce measurement errors; 3) verify the dark matter interpretation of antiproton excess based on the improved DAMPE electron spectra or search for the dark matter signature in it; 4) investigate the gamma-ray emission of dwarf spheroidal galaxies by combining Fermi and DAMPE gamma-ray data to verify the of antiproton excess and its dark matter interpretation; 5) search for dark matter annihilation or decay signals from the radio and X-ray observations of dwarf spheroidal galaxies. By systematically studying the data of cosmic ray antiproton, electron, gamma rays and multi-band electromagnetic radiation, we would manage to find the relationship between these data and search for dark matter signals in a comprehensive and self-consistent way or set limit on dark matter model.