Implications of a Possible Spectral Structure of Cosmic-ray Protons Unveiled by the DAMPE

Lin Nie, Yang Liu, Zejun Jiang

The recent observations revealed that the cosmic-ray (CR) proton spectrum showed a complex structure: the hardening at $\sim 200\mathrm{GeV}$ and softening at $\sim 10\mathrm{TeV}$. Howeve…