Observation of ultra-high-energy diffuse gamma rays from the galactic plane with the Tibet air shower array

Discussion timeslot (ZOOM-Meeting): 19. July 2021 - 18:00
ZOOM-Meeting URL: https://desy.zoom.us/j/98542982538
ZOOM-Meeting ID: 98542982538
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/45-Probing-the-Distribution-of-Cosmic-Rays-in-Galaxies-GAD-GAI-CRD/69
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-04/5

Abstract:
'The Tibet air shower (AS) array and underground water-Cherenkov-type muon detector (MD) array have been successfully operated since 2014, at an altitude of 4,300m in Tibet, China. The gamma-ray energy and arrival direction are determined by the Tibet AS array, while the MD array enable us to suppress more than 99.9% of background cosmic rays above 100 TeV, by means of counting number of muons in an air shower at 2.4m underground. We search for ultra-high-energy diffuse gamma rays from the galactic plane with the Tibet AS+MD array. In this presentation, we will report on observational results and the analysis method using the air shower and muon data collected by the Tibet AS+MD array.'

Authors: Kazumasa Kawata | For the Tibet ASgamma Collaboration
Collaboration: Tibet ASgamma

Indico-ID: 301
Proceeding URL: https://pos.sissa.it/395/795