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arXiv 1009.0887hep-ph
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给出sinθ_{13}=0的味中微子质量

Flavor Neutrino Masses giving sinθ_{13}=0

Keisuke Yuda, Masaki Yasue

摘要:

在中微子混合中,反应堆混合角θ_{13}几乎为零,符合θ_{13}=0。本文讨论了θ_{13}=0的条件对中微子混合模型的约束,并指出,对于由M_{ij}给出的味中微子质量,(i,j=e,μ,τ),M_{eτ} =-e^{2 i γ}tan(θ_{23})M_{eμ}和M_{ττ} =e^{4 i γ} M_{μμ} +e^{2 i γ}[2/tan(2θ_{23})] M_{μτ}的两个条件导致θ_{13}=0,其中θ_{23}是大气中微子混合角,γ是其相。重定相不变性可以选择由α=arg(M_{eμ})和β=arg(M_{eτ})提供的两个相位,给出γ=(β-α)/2。

英文摘要:

Among neutrino mixings, the reactor mixing angle, θ_{13}, is observed to be almost vanishing and is consistent with θ_{13}=0. We discuss how the condition of θ_{13}=0 constrains models of neutrino mixings and show that, for flavor neutrino masses given by M_{ij} (i,j=e,μ,τ), two conditions of M_{eτ}=-e^{2iγ}tan(θ_{23})M_{eμ} and M_{ττ}=e^{4iγ}M_{μμ}+e^{2iγ}[2/tan(2θ_{23})]M_{μτ} lead to θ_{13}=0, where θ_{23} is the atmospheric neutrino mixing angle and γis its associated phase. The rephasing invariance can select two phases provided by α=arg(M_{eμ}) and β=arg(M_{eτ}), giving γ=(β-α)/2.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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