Observation of the East-West anisotropy of the atmospheric neutrino flux

Super-Kamiokande Collaboration

研究成果: Article査読

81 被引用数 (Scopus)

抄録

The east-west anisotropy, caused by the deflection of primary cosmic rays in the Earth's magnetic field, is observed for the first time in the flux of atmospheric neutrinos. Using a 45 kt yr exposure of the Super-Kamiokande detector, 552 e-like and 633 μ-like horizontally going events are selected in the momentum range between 400 and 3000 MeV/c. The azimuthal distributions of e-like and μ-like events agree with the expectation from atmospheric neutrino flux calculations, verifying that the flux of atmospheric neutrinos in the GeV energy range is reasonably well modeled by calculations that account for the geomagnetic field.

本文言語English
ページ(範囲)5194-5197
ページ数4
ジャーナルPhysical Review Letters
82
26
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Observation of the East-West anisotropy of the atmospheric neutrino flux」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル