Author
Tetsuro Eguchi
Recent research
- Physics & SpaceOpen access
Exact fixed-column sum rules and a mass-ratio test in a PMNS construction
An ordered Pontecorvo–Maki–Nakagawa–Sakata (PMNS) construction with prescribed tribimaximal matrix-element splits fixes the second-column squared moduli to the nontrimaximal rational values \((\tfrac{11}{36},\tfrac{25}{64},\tfrac{175}{576})\), yielding the exact solar–reactor sum...
- Physics & SpaceOpen access
Exact fixed-input PMNS sum rules from a split-and-recombined tribimaximal construction
The first solar result from the Jiangmen Underground Neutrino Observatory (JUNO) and the global neutrino-oscillation analysis NuFIT~6.1 sharpen tests of exact first-row lepton-mixing sum rules. We study a fixed-input construction of the Pontecorvo–Maki–Nakagawa–Sakata (PMNS) matr...
- Physics & SpaceOpen access
Exact fixed-input PMNS sum rules from a split-and-recombined tribimaximal construction
The first solar result from the Jiangmen Underground Neutrino Observatory (JUNO) and the global neutrino-oscillation analysis NuFIT~6.1 sharpen tests of exact first-row lepton-mixing sum rules. We study a fixed-input construction of the Pontecorvo–Maki–Nakagawa–Sakata (PMNS) matr...