论文标题
严格限制了与T2K-II协同作用的CPT违规，没有$ν$ A扩展名，Juno
Stringent constraint on CPT violation with the synergy of T2K-II, NO$ν$A extension, and JUNO
论文作者
论文摘要
中微子振荡实验已经通过利用中微子和抗中微子振荡来精确地测量了三个中微子质量特征状态的质谱差和三个松弛的混合角。可能的CPT违规行为可能在中微子和抗中微子振荡参数的差异中表现出来，从而使这些实验有望用于测试CPT不变性。我们从经验上研究CPT测试的敏感性，通过质量方分裂的差异（$δm^2_ {31} - δ\ uperline {m}^2_ {31} $）和轻肌混合角度（$ \ sin^2θ_{2θ_{23} - \ sin^2} - \ sin^2 \ sin^2 \ overline upline usefline yline -syneger-没有$ν$ A扩展名和Juno实验。如果发现CPT对称性是保守的，则三个实验的联合分析将能够建立$ |δm^2_ {31} - δ\Δ\ etlline {m}^2_ {31} | $ <$ 5.3 \ $ 5.3 \ times 10^{ - 3} { - 3} { - 3} \ text {ev}^ev}^2 $ | \ sin^2 \overlineθ_{23} | $ <$ 0.10 $ at 3 $σ$ C. L.在可能的cpt违规中。我们发现，使用（$δm^2_ {31} - δ\覆盖{m}^2_ {31} $），统计意义对相关参数的依赖性排除了CPT的保护是边缘的，并且如果$δm^2_ $δm^$Δ{$δ}的最佳范围差异，则由MINOS（+）和NO $ν$ a持续衡量，合并分析将排除CPT保护在4 $σ$ C. L ..的情况下（$ \ sin^2θ_{23} - \ sin^2 \ sin^2 \overlineθ_{23} $），对CPT Invariance的统计学意义，将CPT Invariance的统计学意义依赖于真正的真实值。 $θ_{23}（\Overlineθ_{23}）$。如果最大混合$θ_{23} $，则CPT保护在3 $σ$ C. L.或更高的情况下，如果最佳拟合值的差异为$θ_{23} $和$ \ \\overlineθ_{23} $保留为true。
Neutrino oscillation experiments have measured precisely the mass-squared differences of three neutrino mass eigenstates, and three leptonic mixing angles by utilizing both neutrino and anti-neutrino oscillations. The possible CPT violation may manifest itself in the difference of neutrino and anti-neutrino oscillation parameters, making these experiments promising tools for testing CPT invariance. We investigate empirically the sensitivity of the CPT test via the difference in mass-squared splittings ($Δm^2_{31} - Δ\overline{m}^2_{31}$) and in leptonic mixing angles ($\sin^2θ_{23} - \sin^2\overlineθ_{23}$) with the synergy of T2K-II, NO$ν$A extension, and JUNO experiments. If the CPT symmetry is found to be conserved, the joint analysis of the three experiments will be able to establish limits of $|Δm^2_{31} - Δ\overline{m}^2_{31}|$ < $5.3\times 10^{-3} \text{eV}^2$ and $|\sin^2θ_{23} - \sin^2\overlineθ_{23}|$ < $0.10$ at 3$σ$ C. L. on the possible CPT violation. We find that with ($Δm^2_{31} - Δ\overline{m}^2_{31}$), the dependence of the statistical significance on the relevant parameters to exclude the CPT conservation is marginal, and that, if the difference in the best-fit values of $Δm^2_{31}$ and $Δ\overline{m}^2_{31}$ measured by MINOS(+) and NO$ν$A persists as the true, the combined analysis will rule out the CPT conservation at 4$σ$ C. L.. With the ($\sin^2θ_{23} - \sin^2\overlineθ_{23}$), the statistical significance to exclude CPT invariance depends strongly on the true value of $θ_{23}(\overlineθ_{23})$. In case of maximal mixing of $θ_{23}$, the CPT conservation will be excluded at 3$σ$ C. L. or more if the difference in the best-fit values of $θ_{23}$ and $\overlineθ_{23}$ remains as the true.
