arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0911.2670hep-ph
收藏

非简并位相对三重极大混合的修正

Corrections to Tribimaximal Mixing from Nondegenerate Phases

Y. F. Li, Q. Y. Liu

摘要:

我们提出了一个跷跷板的情况下,可能的修正轻子混合的tribimportament模式是由于右手中微子质量矩阵的小相分裂。我们表明,小的偏差,可以表示为两个分裂参数($δ_1$和$δ_2$)在领导秩序的解析。太阳混合角$θ_{12}$与零级混合角($35.3^\circ$)相比倾向于较小的混合角,而狄拉克型CP相位$δ$则选择一个接近最大值的混合角。两个Majorana型CP相位$ρ$和$σ$近似线性相关。由于微扰计算的稳定性,正常层次中微子质谱也是有利的。

英文摘要:

We propose a seesaw scenario that possible corrections to the tribimaximal pattern of lepton mixing are due to the small phase splitting of the right-handed neutrino mass matrix. we show that the small deviations can be expressed analytically in terms of two splitting parameters($δ_1$ and $δ_2$) in the leading order. The solar mixing angle $θ_{12}$ favors a relatively smaller value compared to zero order value ($35.3^\circ$), and the Dirac type CP phase $δ$ chooses a nearly maximal one. The two Majorana type CP phases $ρ$ and $σ$ turn out to be a nearly linear dependence. Also a normal hierarchy neutrino mass spectrum is favored due to the stability of perturbation calculations.

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。

↑