Prompt High Energy $\gamma$-Ray Emission From the Synchrotron Self-Compton Process in the Reverse Shocks of $\gamma$-Ray Bursts

X. Y. Wang, Z. G. Dai, T. Lu

In the standard scenario of the fireball model of gamma-ray bursts(GRBs), the huge initial energy release produces a relativistic blast wave expanding into the external medium and…