Atmospheric neutrinos with three flavor mixing

Narayan, Mohan ; Rajasekaran, G. ; Uma Sankar, S. (1997) Atmospheric neutrinos with three flavor mixing Physical Review D, 56 (1). 437–445. ISSN 0556-2821

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We analyze the atmospheric neutrino data in the context of three flavor neutrino oscillations taking account of the matter effects in the Earth. With the hierarchy among the vacuum mass eigenvalues μ32≫μ22>~ μ12, the solution of the atmospheric neutrino problem depends on δ313212 and the 13 and 23 mixing angles φ and ψ. Whereas the sub-GeV atmospheric neutrino data imposes only a lower limit on δ31<10-3eV2, the zenith-angle-dependent suppression observed in the multi-GeV data limits δ31 from above also. The allowed regions of the parameter space are strongly constrained by the multi-GeV data. Combined with our earlier solution to the solar neutrino problem which depends on δ212212 and the 12 and 13 mixing angles ω and φ, we have obtained the ranges of values of the five neutrino parameters which solve both the solar and the atmospheric neutrino problems simultaneously.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:41123
Deposited On:26 May 2011 13:01
Last Modified:17 May 2016 22:58

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