Observation of electrons above 100 GeV with the BETS detector using long-duration balloon in Antarctica

Shoji Torii*, T. Tamura, T. Yamagami, M. Ejiri, H. Kitamura, I. Iijima, A. Kadokura, K. Kasahara, Y. Katayose, T. Kobayashi, Y. Komori, Y. Matsuzaka, K. Mizutani, H. Murakami, M. Namiki, J. Nishimura, S. Ohta, Y. Saito, M. Shibata, N. TateyamaH. Yamagishi, K. Yoshida, T. Yuda, J. Chang

*この研究の対応する著者

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    We had a long duration balloon flight for observing cosmic-ray electrons from 10 GeV to 1000 GeV by the 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 detector is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. The performance of the detector has been confirmed by the beam test at CERN-SPS and also investigated by Monte-Carlo simulations. We have collected 5.7×103 events above 100GeV including nearly 100 candidates of primary electrons. Preliminary result of the electron energy spectrum in 100̃1000 GeV has been obtained.

    本文言語English
    ホスト出版物のタイトル29th International Cosmic Ray Conference, ICRC 2005
    出版社Tata Institute of Fundamental Research
    ページ29-32
    ページ数4
    3
    出版ステータスPublished - 2005
    イベント29th International Cosmic Ray Conference, ICRC 2005 - Pune, India
    継続期間: 2005 8月 32005 8月 10

    Other

    Other29th International Cosmic Ray Conference, ICRC 2005
    国/地域India
    CityPune
    Period05/8/305/8/10

    ASJC Scopus subject areas

    • 核物理学および高エネルギー物理学

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