Measurement of a small atmospheric νμe ratio

Journal Article

From an exposure of 25.5 kiloton-years of the Super-Kamiokande detector, 900 muon-like and 983 electron-like single-ring atmospheric neutrino interactions were detected with momentum pe > 100 MeV/c, pμ > 200 MeV/c, and with visible energy less than 1.33 GeV. Using a detailed Monte Carlo simulation, the ratio (μ/e)DATA/(μ/e)MC was measured to be 0.61 ± 0.03(stat.) ± 0.05(sys.), consistent with previous results from the Kamiokande, IMB and Soudan-2 experiments, and smaller than expected from theoretical models of atmospheric neutrino production. © 1998 Published by Elsevier Science B.V. All rights reserved.

Duke Authors

Cited Authors

  • Fukuda, Y; Hayakawa, T; Ichihara, E; Inoue, K; Ishihara, K; Ishino, H; Itow, Y; Kajita, T; Kameda, J; Kasuga, S; Kobayashi, K; Kobayashi, Y; Koshio, Y; Martens, K; Miura, M; Nakahata, M; Nakayama, S; Okada, A; Oketa, M; Okumura, K; Ota, M; Sakurai, N; Shiozawa, M; Suzuki, Y; Takeuchi, Y; Totsuka, Y; Yamada, S; Earl, M; Habig, A; Hong, JT; Kearns, E; Kim, SB; Masuzawa, M; Messier, MD; Scholberg, K; Stone, JL; Sulak, LR; Walter, CW; Goldhaber, M; Barszczak, T; Gajewski, W; Halverson, PG; Hsu, J et al.

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 433 / 1-2

Start / End Page

  • 9 - 18

International Standard Serial Number (ISSN)

  • 0370-2693