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arXiv 2009.08585hep-phhep-ex
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具有T2K-II、NO $ν$ A扩展和JUNO组合灵敏度的物理势

Physics potentials with a combined sensitivity of T2K-II, NO$ν$A extension and JUNO

S. Cao, A. Nath, T. V. Ngoc, P. T. Quyen, N. T. Hong Van, Ng. K. Francis

摘要:

轻子\textit{CP}破坏搜索、中微子质量等级测定和轻子混合矩阵幺正检验的振荡参数的精确测量是正在进行的和未来的中微子振荡实验的主要目标。这项工作探索了到2027年左右这些目标的物理范围,届时第三代中微子实验开始运行,三个实验的综合灵敏度:T2 K-II,NO PDMATHAMN A扩展和JUNO。结果表明,这三个实验的联合分析,可以决定性地确定中微子的质量等级。此外,在\emph{true} \dcp的某些值处,其提供接近$5σ$置信水平(C.L.)排除\textit{CP} -保守值,并且可以探索超过\emph{true} $δ_{\text{CP}}$值的$50\%$分数区域,其统计学显著性至少为$3σ$ C.L.。此外,联合分析可以提供前所未有的大气中微子振荡参数的精确测量,并为解决非最大混合情况下的$θ_{23}$八分圆简并度问题提供了很大帮助。

英文摘要:

Leptonic \textit{CP} violation search, neutrino mass hierarchy determination, and the precision measurement of oscillation parameters for a unitary test of the leptonic mixing matrix are among the major targets of the ongoing and future neutrino oscillation experiments. The work explores the physics reach for these targets by around 2027, when the third generation of the neutrino experiments starts operation, with a combined sensitivity of three experiments: T2K-II, NO$ν$A extension, and JUNO. It is shown that a joint analysis of these three experiments can conclusively determine the neutrino mass hierarchy. Also, at certain values of \emph{true} \dcp, it provides closely around a $5σ$ confidence level (C.L.) to exclude \textit{CP}-conserving values and more than a $50\%$ fractional region of \emph{true} $δ_{\text{CP}}$ values can be explored with a statistic significance of at least a $3σ$ C.L. Besides, the joint analysis can provide unprecedented precision measurements of the atmospheric neutrino oscillation parameters and a great offer to solve the $θ_{23}$ octant degeneracy in the case of nonmaximal mixing.

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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