Breaking new ground for gamma-ray astronomy at 100 TeV energies

2014 Fiscal Year Final Research Report

• Project/Area Number: 24244026
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: TAKITA Masato 東京大学, 宇宙線研究所, 准教授 (20202161)
• Co-Investigator(Renkei-kenkyūsha): OHNISHI Munehiro 東京大学, 宇宙線研究所, 助教 (10260514) ; KAWATA Kazumasa 東京大学, 宇宙線研究所, 特任助教 (10401291)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 宇宙ガンマ線 / ミューオン / 宇宙線 / 空気シャワー / 水チェレンコフ / チベット / 100 TeV

Outline of Final Research Achievements

As an international joint experiment, we set up a large-area (37000m**2) air shower array at the Tibet highland in China in order to study high-energy cosmic rays and gamma rays. With this grant-in-aids, a large (roughly 4000m**2)underground muon detectors were completed under the air shower array and a joint experiment with the air shower array started. We have accumulated approximately one-year data and continue data-taking now. We will be soon ready for breaking ground for gamma-ray astronomy at 100 TeV energies for the first time in our history with the world best sensisivity. We also studied various interesting high-energy cosmic-ray and gamma-ray physics by the air shower array.

Free Research Field

数物系科学