Physics of parameter correlations around the solar-scale enhancement in neutrino theory with unitarity violation
| dc.contributor.author | Martinez-Soler, Ivan | en |
| dc.contributor.author | Minakata, Hisakazu | en |
| dc.date.accessioned | 2021-01-27T15:31:03Z | en |
| dc.date.available | 2021-01-27T15:31:03Z | en |
| dc.date.issued | 2020-11 | en |
| dc.description.abstract | We 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.notes | Open Access funding: SCOAP<SUP>3</SUP>. | en |
| dc.description.sponsorship | SCOAP3 | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | https://doi.org/10.1093/ptep/ptaa112 | en |
| dc.identifier.issn | 2050-3911 | en |
| dc.identifier.issue | 11 | en |
| dc.identifier.other | 113B01 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/102100 | en |
| dc.identifier.volume | 2020 | en |
| dc.language.iso | en | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.title | Physics of parameter correlations around the solar-scale enhancement in neutrino theory with unitarity violation | en |
| dc.title.serial | Progress of Theoretical and Experimental Physics | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |
| dc.type.dcmitype | StillImage | en |
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