大型液体闪烁体中微子探测器探测核微粒的探索
Exploring detection of nuclearites in a large liquid scintillator neutrino detector
摘要:
本文以JUNO实验为例,探讨了未来大型液体闪烁体探测器中的核微粒。与以前的计算相比,对于基于液体闪烁体的探测器,将重新估计穿过液体闪烁体的核质粒子的可见能量。然后给出了JUNO对核通量的灵敏度。通过20年的运行,发现JUNO方案对核子质量$10^{15} \; {\rm GeV} \leq M \leq 10^{24}$ GeV和初速度$10^{-4} \leq β_0 \leq 10^{-1}$的灵敏度优于$7.7 \times 10^{-17} {\rm cm^{-2} s^{-1} sr^{-1}}$。请注意,JUNO将给出具有$1.6 \times 10^{13} \; {\rm GeV} \leq M \leq 4.0 \times 10^{15}$ GeV和典型星系速度$β_0 = 10^{-3}$的下行核质的最严格极限。
英文摘要:
We take the JUNO experiment as an example to explore nuclearites in the future large liquid scintillator detector. Comparing to the previous calculations, the visible energy of nuclearites across the liquid scintillator will be reestimated for the liquid scintillator based detector. Then the JUNO sensitivities to the nuclearite flux are presented. It is found that the JUNO projected sensitivities can be better than $7.7 \times 10^{-17} {\rm cm^{-2} s^{-1} sr^{-1}}$ for the nuclearite mass $10^{15} \; {\rm GeV} \leq M \leq 10^{24}$ GeV and initial velocity $10^{-4} \leq β_0 \leq 10^{-1}$ with a 20 year running. Note that the JUNO will give the most stringent limits for downgoing nuclearites with $1.6 \times 10^{13} \; {\rm GeV} \leq M \leq 4.0 \times 10^{15}$ GeV and a typical galactic velocity $β_0 = 10^{-3}$.
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