Studies of the nature of the low-energy, gamma-like background for Cherenkov Telescope Array

Abstract

The upcoming Cherenkov Telescope Array (CTA) project is expected to provide unprecedented sensitivity in the low-energy ( <~100 GeV) range for Cherenkov telescopes. In order to exploit fully the potential of the telescopes the standard analysis methods for gamma/hadron separation might need to be revised. We study the composition of the background by identifying events composed mostly of a single electromagnetic subcascade or double subcascade from a π0 (or another neutral meson) decay. We apply the standard simulation and analysis chain of CTA to evaluate the potential of the standard analysis to reject such events.

arXiv commentAll CTA contributions at arXiv:1709.03483. Proc. of the 35th International Cosmic Ray Conference, Busan, Korea