%0 Journal Article
%T New Ambiguity in Probing CP Violation in Neutrino Oscillations
%A Miranda, O. G.
%A Tortola, M.
%A Valle, J. W. F.
%J Physical Review Letters
%D 2016
%V 117
%N 6
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Miranda_etal2016
%O WOS:000381442800007
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2812), last updated on Fri, 07 Oct 2016 09:31:57 +0000
%X If neutrinos get mass via the seesaw mechanism the mixing matrix describing neutrino oscillations can be effectively nonunitary. We show that in this case the neutrino appearance probabilities involve a new CP phase phi associated with nonunitarity. This leads to an ambiguity in extracting the "standard" three-neutrino phase delta(CP), which can survive even after neutrino and antineutrino channels are combined. Its existence should be taken into account in the planning of any oscillation experiment aiming at a robust measurement of delta(CP).
%R 10.1103/PhysRevLett.117.061804
%U http://arxiv.org/abs/1604.05690
%U https://doi.org/10.1103/PhysRevLett.117.061804
%P 061804-5pp