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High Energy Physics - Phenomenology

arXiv:hep-ph/0508231 (hep-ph)
[Submitted on 22 Aug 2005 (v1), last revised 23 Aug 2005 (this version, v2)]

Title:Neutrino Mass Matrix from S_4 Symmetry

Authors:Ernest Ma (UC Riverside and IPPP Durham)
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Abstract: The cubic symmetry S_4 contains A_4 and S_3, both of which have been used to study neutrino mass matrices. Using S_4 as the family symmetry of a complete supersymmetric theory of leptons, it is shown how the requirement of breaking S_4 at the seesaw scale without breaking supersymmetry enforces a special form of the neutrino mass matrix which exhibits maximal nu_mu - nu_tau mixing as well as zero U_e3. In addition, (nu_e + nu_mu + nu_tau)/sqrt{3} is naturally close to being a mass eignestate, thus predicting tan^2 theta_12 to be near but not equal to 1/2.
Comments: 11 pages, no figure
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: UCRHEP-T397 (August 2005)
Cite as: arXiv:hep-ph/0508231
  (or arXiv:hep-ph/0508231v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0508231
Journal reference: Phys.Lett. B632 (2006) 352-356
Related DOI: https://doi.org/10.1016/j.physletb.2005.10.019

Submission history

From: Ernest Ma [view email]
[v1] Mon, 22 Aug 2005 09:31:05 UTC (7 KB)
[v2] Tue, 23 Aug 2005 14:15:32 UTC (7 KB)
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