The study of $U$-boson from ${\pi }^0$-meson decays at HIAF energy

Xiaoyun Wang, Xurong Chen, Qi Zeng +3

Within the frame of LDM (light dark matter)-model, the LDM exchange particle $U$-boson (with mass 10-100 MeV) can be produced from many meson decay process so it attracts a lot of…