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Physics of parameter correlations around the solar-scale enhancement in neutrino theory with unitarity violation
Progress of Theoretical and Experimental Physics ( IF 3.5 ) Pub Date : 2020-11-01 , DOI: 10.1093/ptep/ptaa112
Ivan Martinez-Soler 1, 2, 3 , Hisakazu Minakata 4
Affiliation  

We discuss physics of the three neutrino flavor transformation with non-unitary mixing matrix, with particular attention to the correlation between the $\nu$SM- and the $\alpha$ parameters which represent effect of unitarity violating (UV) new physics. Toward the goal, a new perturbative framework is created to illuminate the effect of non-unitarity in region of the solar-scale enhanced oscillations. We refute the skepticism about the physical reality of the $\nu$SM CP $\delta$ - $\alpha$ parameter phase correlation by analysis with the SOL convention of $U_{\text{\tiny MNS}}$ in which $e^{ \pm i \delta}$ is attached to $s_{12}$. Then, a comparative study between the solar- and atmospheric-scale oscillation regions allowed by the framework reveals a dynamical $\delta-$(blobs of the $\alpha$ parameters) correlation in the solar oscillation region, in sharp contrast to the ``chiral'' type phase correlation $[e^{- i \delta } \bar{\alpha}_{\mu e}, e^{ - i \delta} \bar{\alpha}_{\tau e}, \bar{\alpha}_{\tau \mu}]$ in the PDG convention seen in the atmospheric oscillation region. An explicit perturbative calculation to first order in the $\nu_{\mu} \rightarrow \nu_{e}$ channel allows us to decompose the UV related part of the probability into the unitary evolution part and the genuine non-unitary part. We observe that the effect of non-unitarity tends to cancel between these two parts, as well as between the different $\alpha_{\beta \gamma}$ parameters.

中文翻译:

违反幺正性的中微子理论中太阳尺度增强的参数相关物理学

我们讨论了具有非幺正混合矩阵的三种中微子风味变换的物理学,特别注意 $\nu$SM- 和 $\alpha$ 参数之间的相关性,这些参数代表违反幺正性 (UV) 新物理学的影响。为了实现这一目标,我们创建了一个新的微扰框架来阐明太阳尺度增强振荡区域中非幺正性的影响。我们通过分析 $U_{\text{\tiny MNS}}$ 的 SOL 约定来驳斥对 $\nu$SM CP $\delta$ - $\alpha$ 参数相位相关性的物理现实的怀疑,其中 $ e^{ \pm i \delta}$ 附加到 $s_{12}$。然后,框架允许的太阳和大气尺度振荡区域之间的比较研究揭示了太阳振荡区域中的动态 $\delta-$($\alpha$ 参数的斑点)相关性,与“手性”型相位相关性形成鲜明对比 $[e^{- i \delta } \bar{\alpha}_{\mu e}, e^{ - i \delta} \bar{\alpha} _{\tau e}, \bar{\alpha}_{\tau \mu}]$ 在大气振荡区域看到的 PDG 约定中。在 $\nu_{\mu} \rightarrow \nu_{e}$ 通道中对一阶进行显式微扰计算允许我们将概率的 UV 相关部分分解为酉演化部分和真正的非酉部分。我们观察到,非统一性的影响往往会在这两部分之间以及不同的 $\alpha_{\beta\gamma}$ 参数之间抵消。在 $\nu_{\mu} \rightarrow \nu_{e}$ 通道中对一阶进行显式微扰计算允许我们将概率的 UV 相关部分分解为酉演化部分和真正的非酉部分。我们观察到,非统一性的影响往往会在这两部分之间以及不同的 $\alpha_{\beta\gamma}$ 参数之间抵消。在 $\nu_{\mu} \rightarrow \nu_{e}$ 通道中对一阶进行显式微扰计算允许我们将概率的 UV 相关部分分解为酉演化部分和真正的非酉部分。我们观察到,非统一性的影响往往会在这两部分之间以及不同的 $\alpha_{\beta\gamma}$ 参数之间抵消。
更新日期:2020-11-01
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