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arXiv 1106.4040hep-phhep-ex
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根据最新的T2K结果重新评价中微子混合模式

Re-evaluation of neutrino mixing pattern according to latest T2K result

Ya-juan Zheng, Bo-Qiang Ma

摘要:

根据最新的T2K结果,我们重新计算了混合角$θ_{13}$较大时的中微子混合模式,发现PMNS混合矩阵与双峰(BM)和三双峰(TB)混合模式的偏差比预期的要大.我们还发现,几个方案连接PMNS和CKM混合矩阵可以很好地适应最新的T2K结果。作为对前人工作的必要更新,我们基于BM和TB混合模式对PMNS混合矩阵进行了新的三极小展开。我们还提出了一种新的混合模式,混合角之间的自互补关系$θ_{12}^ν + θ_{13}^ν \simeq 45^\circ$,并发现这样一个新的混合模式在领先的顺序可以提供一个相当好的描述的数据。

英文摘要:

We re-evaluate neutrino mixing patterns according to the latest T2K result for a larger mixing angle $θ_{13}$, and find that the PMNS mixing matrix has larger deviations from bimaximal (BM) and tribimaximal (TB) mixing patterns than previously expected. We also find that several schemes connecting PMNS and CKM mixing matrices can accommodate the latest T2K result nicely. As necessary updates to former works, we make new triminimal expansions of PMNS mixing matrix based on BM and TB mixing patterns. We also propose a new mixing pattern with a self-complementary relation between the mixing angles $θ_{12}^ν + θ_{13}^ν \simeq 45^\circ$, and find such a new mixing pattern in leading order can provide a rather good description of the data.

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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