Author/Authors :
K. Yoshida، نويسنده , , S. Torii، نويسنده , , T. Yamagami، نويسنده , , T. Tamura، نويسنده , , H. Kitamura، نويسنده , , J. Chang، نويسنده , , I. Iijima، نويسنده , , A. Kadokura، نويسنده , , K. Kasahara، نويسنده , , Y. Katayose، نويسنده , , T. Kobayashi، نويسنده , , Y. Komori، نويسنده , , Y. Matsuzaka، نويسنده , , K. Mizutani، نويسنده , , H. Murakami، نويسنده , , M. Namiki، نويسنده , , J. Nishimura، نويسنده , , S. Ohta، نويسنده , , Y. Saito، نويسنده , , M. Shibata، نويسنده , , et al.، نويسنده ,
Abstract :
Cosmic-ray electrons have been observed in the energy region from 10 GeV to 1 TeV with the PPB-BETS by a long duration balloon flight using a Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an average altitude of 35 km in January 2004. The PPB-BETS detector is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. In the study of cosmic-ray electrons, there have been some suggestions that high-energy electrons above 100 GeV are a powerful probe to identify nearby cosmic-ray sources and search for particle dark matter. In this paper, we present the energy spectrum of cosmic-ray electrons in the energy range from 100 GeV to 1 TeV at the top of atmosphere, and compare our spectrum with the results from other experiments.
