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Type: Artigo de periódico
Title: Probing Flavor Changing Neutrino Interactions Using Neutrino Beams From A Muon Storage Ring
Author: Gago A.M.
Guzzo M.M.
Nunokawa H.
Teves W.J.C.
Zukanovich Funchal R.
Abstract: We discuss the capabilities of a future neutrino factory based on intense neutrino beams from a muon storage ring to explore the nonstandard neutrino matter interactions, which are assumed to be subleading effects in the standard mass induced neutrino oscillations. The conjunction of these two mechanisms will magnify the fake CP violating effect in the presence of matter which is not coming from the CP phase in the neutrino mixing matrix. We show that such a fake CP violation can be observed in neutrino factory experiments by measuring the difference between the neutrino and antineutrino probabilities. In order to perform such a test, we consider three neutrino flavors, admitting the mixing parameters in the range consistent with the oscillation solution to the atmospheric and the solar neutrino problems, as well as with the constraints imposed by the reactor neutrino data. We show that with a 10 kt detector with 5 years of operation, a stored muon energy Eμ≥20 GeV, 2×1020 muon decays per year, and a base line L∼732 km, such a neutrino facility can probe the nonstandard flavor changing neutrino interactions down to the level of (10-3-10-2)GF in both νμ→ντ/ν̄ μ→ν̄τ and νe→ντ/ν̄ e→ν̄τ modes. ©2001 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.64.073003
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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