NEW
2021年5月27日開催 / First Observation of sub-PeV galactic diffuse gamma rays by the Tibet ASgamma experiment : 瀧田正人教授 (東京大学宇宙線研究所)

ICRRセミナー

整理番号R3-1
 日時 2021年5月27日(木) 14:00-15:30
 場所Zoom開催: https://zoom.us/j/93762776025?pwd=eVZFNUtKWUIzNFNkZ3lLR09mR1Zhdz09
 講師瀧田正人教授 (東京大学宇宙線研究所)  
 題名“First observation of sub-PeV galactic diffuse gamma rays by the Tibet ASgamma experiment”
 概要などThe Tibet ASgamma experiment is located at 4,300m above sea level, in Tibet, China. The experiment is composed of a 65,000 m2 surface air shower array and 3,400 m2 underground water Cherenkov muon detectors. The surface air shower array is used for reconstructing the primary particle energy and direction, while the underground muon detectors are used for discriminating gamma-ray induced muon-poor air showers from cosmic-ray (proton, helium,…) induced muon-rich air showers. Recently, the Tibet ASgamma  experiment succeeded in first observation of sub-PeV diffuse gamma-ray events along the Galactic disk during approximately two-year live days between 2014 and 2017. In this talk, I would like to introduce the experimental result as well as its interpretation, followed by some future prospect.