Publications (8)
CALET Upper Limits on X-ray and Gamma-ray Counterparts of GW 151226
O. Adriani, Y. Akaike, K. Asano +89
We present upper limits in the hard X-ray and gamma-ray bands at the time of the LIGO gravitational-wave event GW 151226 derived from the CALorimetric Electron Telescope (CALET) ob…
The Anisotropy of Cosmic Ray Arrival Directions around 10eV
AGASA Collaboration, N. Hayashida, K. Honda +26
Anisotropy in the arrival directions of cosmic rays with energies above 10eV is studied using data from the Akeno 20 km array and the Akeno Giant Air Shower Array (AGASA…
Extension of the Cosmic-Ray Energy Spectrum Beyond the Predicted Greisen-Zatsepin-Kuz'min Cutoff
M. Takeda, N. Hayashida, K. Honda +25
The cosmic-ray energy spectrum above 10^{18.5} eV is reported using the updated data set of the Akeno Giant Air Shower Array (AGASA) from February 1990 to October 1997. The energy…
High-energy electron observations by PPB-BETS flight in Antarctica
S. Torii, T. Yamagami, T. Tamura +23
We have observed cosmic-ray electrons from 10 GeV to 800 GeV by a long duration balloon flight using Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 1…
Energy Calibration of CALET Onboard the International Space Station
Y. Asaoka, Y. Akaike, Y. Komiya +91
In August 2015, the CALorimetric Electron Telescope (CALET), designed for long exposure observations of high energy cosmic rays, docked with the International Space Station (ISS) a…
Suppression of critical temperature in Ba(FeCo)As with point defects introduced by proton irradiation
Y. Nakajima, T. Taen, Y. Tsuchiya +3
We report the effect of 3 MeV proton irradiation on the suppression of the critical temperature in Ba(FeCo)As single crystals at under-, optimal-,…
The Detection of TeV Gamma Rays from Crab using the Telescope Array Prototype
S. Aiso, M. Chikawa, Y. Hayashi +51
The Telescope Array prototype detectors were installed at Akeno Observatory and at the Utah Fly's Eye site. Using these detectors, we have observed the Crab Nebula and AGN's since…
Performance evaluation of the aerogel RICH counter for the Belle II spectrometer using early beam collision data
M. Yonenaga, I. Adachi, L. Burmistrov +32
The Aerogel Ring Imaging Cherenkov (ARICH) counter serves as a particle identification device in the forward end-cap region of the Belle II spectrometer. It is capable of identifyi…