论文标题
迷你酮和微酮结合拟合到3+1无菌中微子方案
MiniBooNE and MicroBooNE Combined Fit to a 3+1 Sterile Neutrino Scenario
论文作者
论文摘要
这封信在一个完整的“ 3+1”场景中提出了小型实验的结果，其中一个无菌中微子被引入三个活跃的中微子。除了在短生物线上的电子中性外观外观外，这种情况还允许在增强中微子束中消失，并消失。我们将3+1拟合到小型电子（抗）中微子和MUON-（抗）中微子数据，并与微酮电子中微子数据结合使用。与独家CCE分析（包含分析）合计的最佳拟合参数为$δm^2 = 0.29 eV^2（0.33 eV^2）$，$ | U_ {e4} |^2 = 0.016（0.500）（0.500）$，$ | $ \ sin^2（2θ_{μE}）= 0.0316（1.0）$。将无振荡方案与3+1模型进行比较，数据更喜欢具有$Δχ^2 / \ text {dof} = 24.7 / 3（17.3 / 3）$的3+1模型，$4.3σ（3.4σ）$ prexpredent假设威尔克斯（Wilks'theorem）给出了差异近似。
This letter presents the results from the MiniBooNE experiment within a full "3+1" scenario where one sterile neutrino is introduced to the three-active-neutrino picture. In addition to electron-neutrino appearance at short-baselines, this scenario also allows for disappearance of the muon-neutrino and electron-neutrino fluxes in the Booster Neutrino Beam, which is shared by the MicroBooNE experiment. We present the 3+1 fit to the MiniBooNE electron-(anti)neutrino and muon-(anti)neutrino data alone, and in combination with MicroBooNE electron-neutrino data. The best-fit parameters of the combined fit with the exclusive CCQE analysis (inclusive analysis) are $Δm^2 = 0.29 eV^2 (0.33 eV^2)$, $|U_{e4}|^2 = 0.016 (0.500)$, $|U_{μ4}|^2 = 0.500 (0.500)$, and $\sin^2(2θ_{μe})=0.0316 (1.0)$. Comparing the no-oscillation scenario to the 3+1 model, the data prefer the 3+1 model with a $Δχ^2/\text{dof} = 24.7 / 3 (17.3 / 3)$, a $4.3σ(3.4σ)$ preference assuming the asymptotic approximation given by Wilks' theorem.
