@article{2b8fa75d13324189b1557a987f2339ed,
title = "Observation of the East-West anisotropy of the atmospheric neutrino flux",
abstract = "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.",
author = "{Super-Kamiokande Collaboration} and T. Futagami and Y. Fukuda and T. Hayakawa and K. Inoue and K. Ishihara and H. Ishino and Y. Itow and T. Kajita and J. Kameda and S. Kasuga and K. Kobayashi and Y. Kobayashi and Y. Koshio and M. Miura and M. Nakahata and S. Nakayama and Y. Obayashi and A. Okada and K. Okumura and N. Sakurai and M. Shiozawa and Y. Suzuki and H. Takeuchi and Y. Takeuchi and Y. Totsuka and S. Yamada and M. Earl and A. Habig and E. Kearns and Messier, {M. D.} and K. Scholberg and Stone, {J. L.} and Sulak, {L. R.} and Walter, {C. W.} and M. Goldhaber and T. Barszczak and D. Casper and W. Gajewski and Kropp, {W. R.} and S. Mine and Price, {L. R.} and M. Smy and Sobel, {H. W.} and Vagins, {M. R.} and Ganezer, {K. S.} and Keig, {W. E.} and Ellsworth, {R. W.} and S. Tasaka and A. Kibayashi and Learned, {J. G.}",
year = "1999",
doi = "10.1103/PhysRevLett.82.5194",
language = "English",
volume = "82",
pages = "5194--5197",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "26",
}