Searching for Signal of Primordial Black Hole from CMB Lensing and $\gamma$-ray Emissions

Xiu-Hui Tan, Yang-Jie Yan, Taotao Qiu +1

In this $\text{Letter}$, we search for the signal of the primordial black holes (PBHs) by correlating the $\gamma$-ray emissions in the MeV energy band produced by the Hawking evapora…