A method to determine good data-taking periods for the underground muon detectors

VER F. SANCHEZ EN PUBL. ADJUNTA

Otro; PUBLICACION INTERNA COLABORACION AUGER (GAP NOTE); 2023

The knowledge of the uptime of a hybrid surface detector, such as the 433 m surface arraycoupled with the underground muon detector (UMD-433), is a key ingredient in the calculation ofthe exposure. While methods exist for the 433 m-array, we present a tool to select good periodsof data acquisition for the UMD-433 modules. It is based on the expected event rate of individualmodules and on the analysis of the time interval between successive events. This analysis yields alist of bad periods per module between 1st January 2018 and 31st March 2022, serving as an initial steptoward formulating a hybrid SD+UMD exposure calculation.