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Physics of parameter correlations around the solar-scale enhancement in neutrino theory with unitarity violation

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dc.contributor.authorMartinez-Soler, Ivanen
dc.contributor.authorMinakata, Hisakazuen
dc.date.accessioned2021-01-27T15:31:03Zen
dc.date.available2021-01-27T15:31:03Zen
dc.date.issued2020-11en
dc.description.abstractWe discuss the physics of the three neutrino flavor transformation with non-unitary mixing matrix, with particular attention to the correlation between the nu SM- and the alpha parameters which represent the effect of unitarity-violating (UV) new physics. Towards this goal, a new perturbative framework is created to illuminate the effect of non-unitarity in the region of the solar-scale enhanced oscillations. We refute the skepticism about the physical reality of the nu Standard Model CP phase delta-alpha parameter phase correlation by analysis with the SOL convention of U-MNS, in which e(+/- i delta) is attached to s(12). Then, a comparative study between the solar- and atmospheric-scale oscillation regions allowed by the framework reveals a dynamical delta-(blobs of the a parameters) correlation in the solar oscillation region, in sharp contrast to the "chiral"-type phase correlation [e(-i delta) (alpha) over bar (mu e), e(-i delta)(alpha) over bar (tau e), (alpha) over bar (tau mu)] in the Particle Data Group convention seen in the atmospheric oscillation region. An explicit perturbative calculation to the first order in the nu(mu) -> nu(e) channel allows us to decompose the UV related part of the probability into the unitary evolution part and the genuine non-unitary part. We observe that the effect of non-unitarity tends to cancel between these two parts, as well as between the different alpha(beta gamma) parameters.en
dc.description.notesOpen Access funding: SCOAP<SUP>3</SUP>.en
dc.description.sponsorshipSCOAP3en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1093/ptep/ptaa112en
dc.identifier.issn2050-3911en
dc.identifier.issue11en
dc.identifier.other113B01en
dc.identifier.urihttp://hdl.handle.net/10919/102100en
dc.identifier.volume2020en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titlePhysics of parameter correlations around the solar-scale enhancement in neutrino theory with unitarity violationen
dc.title.serialProgress of Theoretical and Experimental Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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