论文标题
地球中的钾丰度和孔数据
Potassium abundance in the Earth and Borexino data
论文作者
论文摘要
对后座电子和alpha的孔单个事件能谱进行了独立的分析。我们比较了两组单一事件源。第一组类似于Borexino协作分析中使用的一组。第二套还包括$^{40} $ k-geo的散射 - （$ \barν +ν$）在闪烁电器电子上。我们发现了两个同等的minima，第二套$χ^2 $。一个是总计数率$ r（^{40} $ k-geo-$（\barν +ν））= 0.0 $和$ r（^{210} $ bi）= 10 cpd/100t。另一个是$ r（^{40} $ k-geo- $（\barν +ν））= 7.05 $ cpd/100t和$ r（^{210} $ bi $）= 6 $ cpd/100t。我们进行了MC伪证明，发现我们没有足够的统计数据，需要了解闪烁体中的二晶型浓度，以确定地球中钾丰度的测量。正在考虑构建下一代检测器来寻找$^{40} $ k-geo-（$ \barν +ν$）的可能性。
An independent analysis of Borexino single event energy spectrum of recoil electrons and alphas was carried out. We compared two sets of single event sources. The first set is similar to the one used in Borexino Collaboration analysis. The second set additionally includes the scattering of $^{40}$K-geo-($\barν + ν$) on scintillator electrons. We found two equivalent minima for $χ^2$ for second set. The one is for total counting rates $R(^{40}$K-geo-$(\barν + ν)) = 0.0$ and $R(^{210}$Bi) = 10 cpd/100t. The other one is for $R(^{40}$K-geo-$(\barν + ν)) = 7.05$ cpd/100t and $R(^{210}$Bi$) = 6$ cpd/100t. We performed MC pseudo-experiments and found that we do not have enough statistics and need to know the bismuth concentration in the scintillator for definite measurement of potassium abundance in the Earth. The possibility of building a next-generation detector for looking for the $^{40}$K-geo-($\barν + ν$) flux is being considered.
