Seesaw model and two zero flavor neutrino texture

Kitabayashi, Teruyuki; Yasuè, Masaki

doi:10.1142/s0217751x17500348

Cited by 6 publications

(1 citation statement)

References 44 publications

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“…In this regard some general classifications and concrete analyses have been made (see, e.g., Refs. [871,872,873,874,875,876]). It is certainly difficult to test most of them by just using current neutrino oscillation data, because such zero textures on the seesaw usually involve quite a lot of free parameters.…”

Section: The Fritzsch Texture On the Seesawmentioning

confidence: 99%

Flavor structures of charged fermions and massive neutrinos

Xing

2019

Preprint

116

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Most of the free parameters in the Standard Model (SM) -a quantum field theory which has successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all the known fundamental particles, come from the lepton and quark flavors. The discovery of neutrino oscillations has proved that the SM is incomplete, at least in its lepton sector; and thus the door of opportunity is opened to exploring new physics beyond the SM and solving a number of flavor puzzles. In this review article we give an overview of important progress made in understanding the mass spectra, flavor mixing patterns, CP-violating effects and underlying flavor structures of charged leptons, neutrinos and quarks in the past twenty years. After introducing the standard pictures of fermion mass generation, flavor mixing and CP violation in the SM extended with the presence of massive Dirac or Majorana neutrinos, we briefly summarize current experimental knowledge about the flavor parameters of quarks and leptons. Various ways of describing flavor mixing and CP violation are discussed, the renormalization-group evolution of flavor parameters is illuminated, and the matter effects on neutrino oscillations are interpreted. Taking account of possible extra neutrino species, we propose a standard parametrization of the 6 × 6 flavor mixing matrix and comment on the phenomenological aspects of heavy, keV-scale and light sterile neutrinos. We pay particular attention to those novel and essentially model-independent ideas or approaches regarding how to determine the Yukawa textures of Dirac fermions and the effective mass matrix of Majorana neutrinos, including simple discrete and continuous flavor symmetries. An outlook to the future development in unravelling the mysteries of flavor structures is also given.

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Section: The Fritzsch Texture On the Seesawmentioning

confidence: 99%

Flavor structures of charged fermions and massive neutrinos

Xing

2019

Preprint

116

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Flavor structures of charged fermions and massive neutrinos

2020

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Is the magic texture of Majorana neutrinos immanent in Dirac nature?

Hyodo

Kitabayashi

2023

Chinese Phys. C

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The magic textures are successful candidates of the correct texture for the Majorana neutrinos. In this study, we show that some types of magic texture for Majorana neutrinos approximately immanent in the flavor mass matrix for Dirac neutrinos. In addition, it turned out that the normal mass ordering of the Dirac neutrino masses is slightly preferable to the inverted mass ordering in the context of the magic textures. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Seesaw model and two zero flavor neutrino texture

Cited by 6 publications

References 44 publications

Flavor structures of charged fermions and massive neutrinos

Flavor structures of charged fermions and massive neutrinos

Flavor structures of charged fermions and massive neutrinos

Is the magic texture of Majorana neutrinos immanent in Dirac nature?

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