Constraints on natural Maki-Nakagawa-Sakata parameters from [Formula Presented]

Richard Lebed; Daniel R. Martin

doi:10.1103/PhysRevD.70.013004

Constraints on natural Maki-Nakagawa-Sakata parameters from [Formula Presented]

Richard Lebed, Daniel R. Martin

CLAS-NS: Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The MNS matrix structure emerging as a result of recent neutrino measurements strongly suggests two large mixing angles (solar and atmospheric) and one small angle [Formula Presented] Especially when combined with the neutrino mass hierarchy, these values turn out to impose rather stringent constraints on possible flavor models connecting the three active fermion generations. Specifically, we show that an extremely small value of [Formula Presented] would require fine-tuning of Majorana mass matrix parameters, particularly in the context of seesaw models.

Original language	English (US)
Pages (from-to)	10
Number of pages	1
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	70
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.70.013004
State	Published - 2004

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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title = "Constraints on natural Maki-Nakagawa-Sakata parameters from [Formula Presented]",

abstract = "The MNS matrix structure emerging as a result of recent neutrino measurements strongly suggests two large mixing angles (solar and atmospheric) and one small angle [Formula Presented] Especially when combined with the neutrino mass hierarchy, these values turn out to impose rather stringent constraints on possible flavor models connecting the three active fermion generations. Specifically, we show that an extremely small value of [Formula Presented] would require fine-tuning of Majorana mass matrix parameters, particularly in the context of seesaw models.",

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