@Article{Ge_etal2017,
author="Ge, S. F.
and Pasquini, P.
and Tortola, M.
and Valle, J. W. F.",
title="Measuring the leptonic CP phase in neutrino oscillations with nonunitary mixing",
journal="Physical Review D",
year="2017",
publisher="Amer Physical Soc",
volume="95",
number="3",
pages="033005--14pp",
abstract="Non-unitary neutrino mixing implies an extra CP violating phase that can fake the leptonic Dirac CP phase delta(CP) of the simplest three-neutrino mixing benchmark scheme. This would hinder the possibility of probing for CP violation in accelerator-type experiments. We take T2K and T2HK as examples to demonstrate the degeneracy between the {\textquoteleft}{\textquoteleft}standard{\textquoteright}{\textquoteright} (or {\textquoteleft}{\textquoteleft}unitary{\textquoteright}{\textquoteright}) and {\textquoteleft}{\textquoteleft}nonunitary{\textquoteright}{\textquoteright} CP phases. We find, under the assumption of nonunitary mixing, that their CP sensitivities severely deteriorate. Fortunately, the TNT2K proposal of supplementing T2(H)K with a $\mu$DAR source for better measurement of delta(CP) can partially break the CP degeneracy by probing both cos delta(CP) and sin delta(CP) dependences in the wide spectrum of the $\mu$DAR flux. We also show that the further addition of a near detector to the $\mu$DAR setup can eliminate the degeneracy completely.",
optnote="WOS:000394092900002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2988), last updated on Wed, 21 Feb 2018 12:52:19 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.95.033005",
opturl="http://arxiv.org/abs/1605.01670",
opturl="https://doi.org/10.1103/PhysRevD.95.033005",
archivePrefix="arXiv",
eprint="1605.01670",
language="English"
}