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Matter effects in upward-going muons and sterile neutrino oscillations
Journal article   Open access   Peer reviewed

Matter effects in upward-going muons and sterile neutrino oscillations

M. Ambrosio, R. Antolini, G. Auriemma, D. Bakari, A. Baldini, G.C. Barbarino, B.C. Barish, G. Battistoni, Y. Becherini, R. Bellotti, …
Physics letters. B, v 517(01-02)
27 Sep 2001
url
https://doi.org/10.1016/s0370-2693(01)00992-3View
Published, Version of Record (VoR)CC BY V4.0 Open
url
https://doi.org/10.1016/S0370-2693(01)00992-3View
Published, Version of Record (VoR) Open

Abstract

14.60.Pq 14.60.Lm
The angular distribution of upward-going muons produced by atmospheric neutrinos in the rock below the MACRO detector shows anomalies in good agreement with two flavor νμ→ντ oscillations with maximum mixing and Δm2 around 0.0024 eV2. Exploiting the dependence of magnitude of the matter effect on oscillation channel, and using a set of 809 upward-going muons observed in MACRO, we show that the two flavor νμ→νs oscillation is disfavored with 99% C.L. with respect to νμ→ντ.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
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