零织构中微子质量矩阵中的重定相不变四重态与CP破坏
Rephasing invariant quartets in texture zero neutrino mass matrix and CP violation
摘要：
在夸克扇区，Jarlskog重整相不变量$\rm{J_{CP}}$对CP破坏以及夸克质量矩阵的相结构有重要的意义。事实上，该扇区中的所有CP破坏效应与$\rm{J_{CP}}$的虚部的幅度成比例。随着非零和相对大的反应堆混合角$θ_{13}$的观测，人们普遍认为CP可能在轻子扇区被破坏。最近的中微子振荡的全局最佳拟合表明，在相对较大的置信水平上，CP破坏优于CP守恒。这些实验结果为重新研究低能CP奇弱基不变量提供了理论依据，并探讨了它们对织构二零中微子质量矩阵中CP破坏的意义.
英文摘要：
In the quark sector, Jarlskog rephasing invariant $\rm{J_{CP}}$ has important implications for the CP violation as well as phase structure of the quark mass matrices. In fact all CP violating effects in this sector are proportional to the magnitude of the imaginary part of $\rm{J_{CP}}$. With the observation of non-zero and relatively large reactor mixing angle $θ_{13}$, it is widely believed that CP might be violated in the lepton sector. The recent global best fits of neutrino oscillation indicates the preference of CP violation over CP conservation at relatively large confidence level. These experimental observations warrant to re-investigate the CP-odd weak basis invariants at low energies, and also explore their implications for CP violation in the context of texture two zero neutrino mass matrix.
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