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Intrinsic Deviation from the Tri-bimaximal Neutrino Mixing in a Class of A 4 Flavor Models

Araki, T., Mei, J., & Xing, Z.-z. (2011). Intrinsic Deviation from the Tri-bimaximal Neutrino Mixing in a Class of A 4 Flavor Models. Physics Letters B, 695(1-4), 165-168. doi:10.1016/j.physletb.2010.10.061.

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Genre: Journal Article

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1010.3065 (Preprint), 132KB
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### Creators

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Creators:
Araki, Takeshi, Author
Mei, Jianwei1, Author
Xing, Zhi-zhong, Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014

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Free keywords: High Energy Physics - Phenomenology, hep-ph
Abstract: It is well known that the tri-bimaximal neutrino mixing pattern V_0 can be derived from a class of flavor models with the non-Abelian A_4 symmetry. We point out that small corrections to V_0, which are inherent in the A_4 models and arise from both the charged-lepton and neutrino sectors, have been omitted in the previous works. We show that such corrections may lead the 3 \times 3 neutrino mixing matrix V to a non-unitary deviation from V_0, but they cannot result in a nonzero value of \theta_13 or any new CP-violating phases. Current experimental constraints on the unitarity of V allow us to constrain the model parameters to some extent.

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Dates: 2010-10-142010-11-012011
Publication Status: Published in print
Pages: 11 pages, no figures; a reference added, accepted for publication in Phys. Lett. B
Publishing info: -
Rev. Method: -
Identifiers: arXiv: 1010.3065
DOI: 10.1016/j.physletb.2010.10.061
URI: http://arxiv.org/abs/1010.3065
Degree: -

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### Source 1

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Title: Physics Letters B
Source Genre: Journal
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Publ. Info: North-Holland
Pages: - Volume / Issue: 695 (1-4) Sequence Number: - Start / End Page: 165 - 168 Identifier: ISSN: 0370-2693
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925524777