Speaker
Ruizhi Yang
(USTC)
Description
We analyze the 0mu events detected by LHAASO-KM2A. Above 400 TeV, these events achieve a cosmic-ray background rejection power of about . We find that differences in source masks can partly explain the discrepancies between the AS and LHAASO-KM2A measurements of GDE. A clustering analysis of the 0mu events further reveals several regions of enhanced gamma-ray emission, whose spatial distribution differs significantly from that of the interstellar gas. These extended excesses may be associated with recent cosmic ray injection up to or beyond the knee in our Galaxy.
Primary author
Ruizhi Yang
(USTC)
