Probing CP violation with non-unitary mixing in long-baseline neutrino oscillation experiments: DUNE as a case study

Roderic Mòbil

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Probing CP violation with non-unitary mixing in long-baseline neutrino oscillation experiments: DUNE as a case study

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dc.contributor.author Escrihuela Ferrándiz, Francisco Javier
dc.contributor.author Vanegas Forero, David
dc.contributor.author Miranda, O.G.
dc.contributor.author Tórtola Baixauli, María Amparo
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2019-05-15T13:31:26Z
dc.date.available 2019-05-15T13:31:26Z
dc.date.issued 2017
dc.identifier.uri http://hdl.handle.net/10550/70186
dc.description.abstract When neutrino masses arise from the exchange of neutral heavy leptons, as in most seesaw schemes, the effective lepton mixing matrix N describing neutrino propagation is non-unitary, hence neutrinos are not exactly orthonormal. New CP violation phases appear in N that could be confused with the standard phase δCP characterizing the three neutrino paradigm. We study the potential of the long-baseline neutrino experiment DUNE in probing CP violation induced by the standard CP phase in the presence of non-unitarity. In order to accomplish this we develop our previous formalism, so as to take into account the neutrino interactions with the medium, important in long baseline experiments such as DUNE. We find that the expected CP sensitivity of DUNE is somewhat degraded with respect to that characterizing the standard unitary case. However the effect is weaker than might have been expected thanks mainly to the wide neutrino beam. We also investigate the sensitivity of DUNE to the parameters characterizing non-unitarity. In this case we find that there is no improvement expected with respect to the current situation, unless the near detector setup is revamped.
dc.language.iso eng
dc.relation.ispartof New Journal of Physics, 2017, vol. 19, p. 093005-1-093005-14
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Escrihuela Ferrándiz, Francisco Javier Vanegas Forero, David Miranda, O.G. Tórtola Baixauli, María Amparo Furtado Valle, José Wagner 2017 Probing CP violation with non-unitary mixing in long-baseline neutrino oscillation experiments: DUNE as a case study New Journal of Physics 19 093005-1 093005-14
dc.subject Partícules (Física nuclear)
dc.subject Violació CP (Física nuclear)
dc.title Probing CP violation with non-unitary mixing in long-baseline neutrino oscillation experiments: DUNE as a case study
dc.type info:eu-repo/semantics/article
dc.date.updated 2019-05-15T13:31:27Z
dc.identifier.doi https://doi.org/10.1088/1367-2630/aa79ec
dc.identifier.idgrec 120883


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Roderic Mòbil