High-energy electron observations by PPB-BETS flight in Antarctica (2008)
Torii, S., Yamagami, T., Tamura, T., Yoshida, K., Kitamura, H., Anraku, K., ...
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 13 days at an...
Measurements of Primary and Atmospheric Cosmic-Ray Spectra with the BESS-TeV Spectrometer (2004)
Haino, S., Sanuki, T., Abe, K., Anraku, K., Asaoka, Y., Fuke, H., ...
Primary and atmospheric cosmic-ray spectra were precisely measured with the BESS-TeV spectrometer. The spectrometer was upgraded from BESS-98 to achieve seven times higher resolution in momentum...
Measurement of Cosmic-Ray Proton and Antiproton Spectra at Mountain Altitude (2003)
Sanuki, T., Fujikawa, M., Matsunaga, H., Abe, K., Anraku, K., Fuke, H., ...
Cosmic-ray proton and antiproton spectra were measured at mountain altitude, 2770 m above sea level. We observed more than 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy range between 0.25...
Measurement of Cosmic-Ray Proton, Antiproton and Muon Spectra at Mountain Altitude (2003)
Sanuki, T., Fujikawa, M., Abe, K., Anraku, K., Fuke, H., Haino, S., ...
Measurement of cosmic-ray proton, antiproton and muon spectra was carried out at mountain altitude. We observed 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy region of 0.25 -- 3.3 GeV....
Abe, K., Sanuki, T., Anraku, K., Asaoka, Y., Fuke, H., Haino, S., ...
The cosmic-ray proton, helium, and muon spectra at small atmospheric depths of 4.5 -- 28 g/cm^2 were precisely measured during the slow descending period of the BESS-2001 balloon flight. The...
Measurements of atmospheric muon spectra at mountain altitude (2002)
Sanuki, T., Fujikawa, M., Abe, K., Anraku, K., Asaoka, Y., Fuke, H., ...
We report new measurements of the atmospheric muons at mountain altitude. The measurement was carried out with the BESS detector at the top of Mt. Norikura, Japan. The altitude is 2,770 m above sea...
Precise Measurements of Atmospheric Muon Fluxes with the BESS Spectrometer (2002)
Motoki, M., Sanuki, T., Orito, S., Abe, K., Anraku, K., Asaoka, Y., ...
The vertical absolute fluxes of atmospheric muons and muon charge ratio have been measured precisely at different geomagnetic locations by using the BESS spectrometer. The observations had been...
Asaoka, Y., Shikaze, Y., Abe, K., Anraku, K., Fujikawa, M., Fuke, H., ...
The energy spectra of cosmic-ray low-energy antiprotons and protons have been measured by BESS in 1999 and 2000, during a period covering the solar magnetic field reversal. Based on these...
Measurement of low-energy antiproton detection efficiency in BESS below 1 GeV (2001)
Asaoka, Y., Yoshimura, K., Yoshida, T., Abe, K., Anraku, K., Fujikawa, M., ...
An accelerator experiment was performed using a low-energy antiproton beam to measure antiproton detection efficiency of BESS, a balloon-borne spectrometer with a superconducting solenoid. Measured...
Precise Measurement of Cosmic-Ray Proton and Helium Spectra with the BESS Spectrometer (2000)
Sanuki, T., Motoki, M., Matsumoto, H., Seo, E. S., Wang, J. Z., Abe, K., ...
We report cosmic-ray proton and helium spectra in energy ranges of 1 to 120 GeV and 1 to 54 GeV/nucleon, respectively, measured by a balloon flight of the BESS spectrometer in 1998. The...
Precision Measurement of Cosmic-Ray Antiproton Spectrum (1999)
Orito, S., Maeno, T., Matsunaga, H., Abe, K., Anraku, K., Asaoka, Y., ...
The energy spectrum of cosmic-ray antiprotons has been measured in the range 0.18 to 3.56 GeV, based on 458 antiprotons collected by BESS in recent solar-minimum period. We have detected for the...
An information criterion for parameters under a simple order restriction (1999)
Suppose we have independent random samples from each of k populations specified by scalar-valued, unknown parameters &thgr;1,...,&thgr;k satisfying the simple order restriction...
Progress in search for cosmic-ray anti-particles by BESS spectrometer (1998)
Yamamoto, A, Orito, S, Ormes, J F, Yoshida, T, Yoshimura, K, Abe, K, ...
Measurement of Low-Energy Cosmic-Ray Antiprotons at Solar Minimum (1998)
Matsunaga, H., Orito, S., Matsumoto, H., Yoshimura, K., Moiseev, A., Anraku, K., ...
The absolute fluxes of the cosmic-ray antiprotons at solar minimum are measured in the energy range 0.18 to 1.4 GeV, based on 43 events unambiguously detected in BESS '95 data. The resultant energy...
A New Limit on the Flux of Cosmic Antihelium (1997)
Saeki, T, Anraku, K, Orito, S, Ormes, J F, Imori, M, Kimbell, B L, ...
A very sensitive search for cosmic-ray antihelium was performed using data obtained from three scientific flights of BESS magnetic rigidity spectrometer. We have not observed any antihelium; this...
A New Limit on the Flux of Cosmic Antihelium (1997)
Saeki, T., Anraku, K., Orito, S., Ormes, J., Imori, M., Kimbell, B., ...
A very sensitive search for cosmic-ray antihelium was performed using data obtained from three scientific flights of BESS magnetic rigidity spectrometer. We have not observed any antihelium; this...
Search for antihelium of cosmic origin (1996)
Anraku, K, Golden, R L, Imori, M, Inaba, S, Kimbell, B L, Kimura, N, ...