Speaker
Hiroyasu TAJIMA
(SLAC)
Description
The origin of cosmic rays has been a great mystery since they were
discovered by Victor Hess in 1912. The AGASA observation of ultra-high-
energy cosmic rays (UHECR) possibly beyond the GZK cutoff stimulated the
field a great deal. In addition, the Kamiokande detection of neutrinos from
SN1987A and the H.E.S.S. detection of TeV gamma-rays from supernova
remnants demonstrated the viability of neutrino and TeV gamma-ray
astronomy for cosmic-ray research. The new generation of currently-
operating or soon-to-be-operating detectors for charged particles, gamma-
rays and neutrinos from cosmos will get us even closer to understanding the
nature and origin of cosmic rays. Detectors for UHECRs, gamma rays and
neutrinos are of particular importance in order to study the origins of cosmic
rays since these particles are free from the deflection due to magnetic fields.
Detectors for antiparticles and gamma rays would be useful to detect cosmic
rays originating from the decay of the dark matter in the Universe. I will
review these cosmic-ray detectors with particular attention on the
differences of ground-based, balloon-borne and satellite-borne detectors.
Primary author
Hiroyasu TAJIMA
(SLAC)
