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Telling three from four neutrino scenarios

D. Meloni
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Abstract

In this talk I will consider the possibility of distinguish the usual three neutrino model from scenarios in which a light sterile neutrino is also present. I will show that the confusion with the so-called 3+1 scheme can arise in some particular region of the parameter space whereas it is essentially absent for the 2+2 scheme. Then I will discuss the ambiguities in the determination of the CP-violating phase $δ$.

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D. Meloni. 2002-05-20. Telling three from four neutrino scenarios. https://arxiv.org/abs/hep-ph/0204351

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