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Measuring the leptonic CP phase in neutrino oscillations with nonunitary mixing

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Measuring the leptonic CP phase in neutrino oscillations with nonunitary mixing

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dc.contributor.author	Ge, Shao-Feng
dc.contributor.author	Pasquini, Pedro
dc.contributor.author	Tórtola Baixauli, María Amparo
dc.contributor.author	Furtado Valle, José Wagner
dc.date.accessioned	2019-05-07T13:44:17Z
dc.date.available	2019-05-07T13:44:17Z
dc.date.issued	2017
dc.identifier.citation	Ge, Shao-Feng Pasquini, Pedro Tórtola Baixauli, María Amparo Furtado Valle, José Wagner 2017 Measuring the leptonic CP phase in neutrino oscillations with nonunitary mixing Physical Review D 95 3 033005-1 033005-14
dc.identifier.uri	http://hdl.handle.net/10550/70102
dc.description.abstract	Non-unitary neutrino mixing implies an extra CP violating phase that can fake the leptonic Dirac CP phase δCP 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 "standard" (or "unitary") and "non-unitary" CP phases. We find, under the assumption of non-unitary mixing, that their CP sensitivities severely deteriorate. Fortunately, the TNT2K proposal of supplementing T2(H)K with a µDAR source for better measurement of δCP can partially break the CP degeneracy by probing both cos δCP and sin δCP dependences in the wide spectrum of the µDAR flux. We also show that the further addition of a near detector to the µDAR setup can eliminate the degeneracy completely.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2017, vol. 95, num. 3, p. 033005-1-033005-14
dc.subject	Partícules (Física nuclear)
dc.subject	Violació CP (Física nuclear)
dc.title	Measuring the leptonic CP phase in neutrino oscillations with nonunitary mixing
dc.type	journal article	es_ES
dc.date.updated	2019-05-07T13:44:18Z
dc.identifier.doi	10.1103/PhysRevD.95.033005
dc.identifier.idgrec	120219
dc.rights.accessRights	open access	es_ES