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Title: Examining the geometrical model with inverted mass hierarchy for neutrinos

Abstract

The comprehensive analyses are presented in the model with the inverted mass hierarchy for neutrinos, which follows from a geometrical structure of a (1+5) dimensional space-time where two extra dimensions are compactified on the T{sup 2}/Z{sub 3} orbifold. The model gives two large lepton flavor mixings due to the S{sub 3} structure in the (1+5) dimensional space-time. It also predicts the lightest neutrino mass as m{sub 3}=(1-50)x10{sup -5} eV and the effective neutrino mass responsible for neutrinoless double beta decays as <m>{sub ee}{approx_equal}50 meV. The low energy CP violation, J{sub CP} could be 0.02. On the other hand, the observed baryon asymmetry in the present universe is produced by the nonthermal leptogenesis, which works even at the reheating temperature T{sub R}=10{sup 4}-10{sup 6} GeV. The correlation between the baryon asymmetry and the low energy CP violation is examined in this model.

Authors:
;  [1];  [2]
  1. Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
21020518
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.75.096005; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BARYONS; COMPACTIFICATION; CORRELATIONS; CP INVARIANCE; DOUBLE BETA DECAY; FLAVOR MODEL; GEV RANGE; MEV RANGE; NEUTRINOS; REST MASS; SPACE-TIME; STANDARD MODEL; UNIVERSE

Citation Formats

Honda, Mizue, Tanimoto, Morimitsu, and Department of Physics, Niigata University, Niigata 950-2181. Examining the geometrical model with inverted mass hierarchy for neutrinos. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.096005.
Honda, Mizue, Tanimoto, Morimitsu, & Department of Physics, Niigata University, Niigata 950-2181. Examining the geometrical model with inverted mass hierarchy for neutrinos. United States. doi:10.1103/PHYSREVD.75.096005.
Honda, Mizue, Tanimoto, Morimitsu, and Department of Physics, Niigata University, Niigata 950-2181. Tue . "Examining the geometrical model with inverted mass hierarchy for neutrinos". United States. doi:10.1103/PHYSREVD.75.096005.
@article{osti_21020518,
title = {Examining the geometrical model with inverted mass hierarchy for neutrinos},
author = {Honda, Mizue and Tanimoto, Morimitsu and Department of Physics, Niigata University, Niigata 950-2181},
abstractNote = {The comprehensive analyses are presented in the model with the inverted mass hierarchy for neutrinos, which follows from a geometrical structure of a (1+5) dimensional space-time where two extra dimensions are compactified on the T{sup 2}/Z{sub 3} orbifold. The model gives two large lepton flavor mixings due to the S{sub 3} structure in the (1+5) dimensional space-time. It also predicts the lightest neutrino mass as m{sub 3}=(1-50)x10{sup -5} eV and the effective neutrino mass responsible for neutrinoless double beta decays as <m>{sub ee}{approx_equal}50 meV. The low energy CP violation, J{sub CP} could be 0.02. On the other hand, the observed baryon asymmetry in the present universe is produced by the nonthermal leptogenesis, which works even at the reheating temperature T{sub R}=10{sup 4}-10{sup 6} GeV. The correlation between the baryon asymmetry and the low energy CP violation is examined in this model.},
doi = {10.1103/PHYSREVD.75.096005},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 75,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}