Tau neutrinos favored over sterile neutrinos in atmospheric muon neutrino oscillations.

Journal Article (Journal Article)

The previously published atmospheric neutrino data did not distinguish whether muon neutrinos were oscillating into tau neutrinos or sterile neutrinos, as both hypotheses fit the data. Using data recorded in 1100 live days of the Super-Kamiokande detector, we use three complementary data samples to study the difference in zenith angle distribution due to neutral currents and matter effects. We find no evidence favoring sterile neutrinos, and reject the hypothesis at the 99% confidence level. On the other hand, we find that oscillation between muon and tau neutrinos suffices to explain all the results in hand.

Full Text

Duke Authors

Cited Authors

  • Fukuda, S; Fukuda, Y; Ishitsuka, M; Kajita, T; Kameda, J; Kaneyuki, K; Kobayashi, K; Koshio, Y; Miura, M; Moriyama, S; Nakahata, M; Nakayama, S; Obayashi, Y; Okada, A; Okumura, K; Sakurai, N; Shiozawa, M; Suzuki, Y; Takeuchi, H; Takeuchi, Y; Toshito, T; Totsuka, Y; Yamada, S; Earl, M; Habig, A; Kearns, E; Messier, MD; Scholberg, K; Stone, JL; Sulak, LR; Walter, CW; Goldhaber, M; Barszczak, T; Casper, D; Gajewski, W; Kropp, WR; Mine, S; Price, LR; Smy, M; Sobel, HW; Vagins, MR; Ganezer, KS; Keig, WE; Ellsworth, RW; Tasaka, S; Kibayashi, A; Learned, JG; Matsuno, S; Takemori, D

Published Date

  • November 2000

Published In

Volume / Issue

  • 85 / 19

Start / End Page

  • 3999 - 4003

PubMed ID

  • 11056609

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.85.3999


  • eng