The measurements of the cosmic ray energy spectrum and the depth of maximum shower development of TA Hybrid trigger mode

Discussion timeslot (ZOOM-Meeting): 13. July 2021 - 18:00
ZOOM-Meeting URL: https://desy.zoom.us/j/92210078166
ZOOM-Meeting ID: 92210078166
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/05-CR-Mass-composition-CRI/73
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-03/4

Abstract:
'The Telescope Array experiment is an ultra-high energy cosmic ray observatory located in Millard County, Utah, USA. The observatory consists of 3 fluorescence detector (FD) stations and 507 surface detectors (SD) that cover an area of ~700 km smaller sup larger 2 smaller /sup larger . *Hybrid trigger* is an external trigger system for the SD arrays that prompts the SD to perform data acquisition when an FD detects a shower-like event. In comparison with the SD autonomous trigger, hybrid trigger allows the SD to collect the data of an air shower that has primary energy below 10 smaller sup larger 18.5 smaller /sup larger eV, where the efficiency of SD autonomous trigger decreases rapidly. We present the measurements of the cosmic ray energy spectrum and the depth of maximum shower development of hybrid trigger events observed from October 2010 to June 2019.'

Authors: Heungsu Shin
Co-Authors: For the Telescope Array Collaboration
Collaboration: Telescope Array

Indico-ID: 408
Proceeding URL: https://pos.sissa.it/395/305