First demonstration of O(1 ns) timing resolution in the MicroBooNE liquid argon time projection chamber
First demonstration of O(1 ns) timing resolution in the MicroBooNE liquid argon time projection chamber
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首次在 MicroBooNE 液氩时间投影室中演示 O(1×ns) 定时分辨率
DOI：
10.1103/physrevd.108.052010
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发表时间：
2023
影响因子：
5
通讯作者：
Barr, G.
中科院分区：
文献类型：
--
作者：
Abratenko, P.;Alterkait, O.;Andrade Aldana, D.;Anthony, J.;Arellano, L.;Asaadi, J.;Ashkenazi, A.;Balasubramanian, S.;Baller, B.;Barr, G.
MicroBooNE是位于费米实验室助推器中微子束线（BNB）的中微子实验，收集了2015年至2021年的数据。MicroBooNE的液氩时间投影室（LArTPC）配有一个光子探测系统，该系统由32个光电倍增管组成，用于测量氩闪烁光并确定中微子相互作用的时间。分析技术相结合的光信号和重建的轨道，以实现中微子相互作用的时间分辨率。所获得的结果允许MicroBooNE第一次访问BNB的纳秒束结构。时间分辨率的实现将使所有中微子分析的宇宙背景排斥显着增强。此外，ns的时间分辨率开辟了新的途径，以寻找长寿命的粒子，如重中性轻子在MicroBooNE，以及在未来的大型LArTPC实验，即SBN计划和DUNE。
MicroBooNE is a neutrino experiment located in the Booster Neutrino Beamline (BNB) at Fermilab, which collected data from 2015 to 2021. MicroBooNE’s liquid argon time projection chamber (LArTPC) is accompanied by a photon detection system consisting of 32 photomultiplier tubes used to measure the argon scintillation light and determine the timing of neutrino interactions. Analysis techniques combining light signals and reconstructed tracks are applied to achieve a neutrino interaction time resolution of. The result obtained allows MicroBooNE to access the nanosecond beam structure of the BNB for the first time. The timing resolution achieved will enable significant enhancement of cosmic background rejection for all neutrino analyses. Furthermore, the ns timing resolution opens new avenues to search for long-lived-particles such as heavy neutral leptons in MicroBooNE, as well as in future large LArTPC experiments, namely the SBN program and DUNE.