New method for an improved antineutrino energy reconstruction with charged-current interactions in next-generation detectors
New method for an improved antineutrino energy reconstruction with charged-current interactions in next-generation detectors
复制标题
下一代探测器中带电电流相互作用改进反中微子能量重建的新方法
DOI：
10.1103/physrevd.101.092003
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
and C. Jesus-Valls
中科院分区：
文献类型：
--
作者：
L. Munteanu;S. Suvorov;S. Dolan;D. Sgalaberna;S. Bolognesi;S. Manly;G. Yang;C. Giganti;K. Iwamoto;and C. Jesus-Valls
我们提出并验证了一种方法的antineutrino能量重建的带电电流介子少的相互作用的复合材料完全活性的目标含有氢（如碳氢化合物闪烁体），这是在很大程度上不了解的核效应，通常扭曲和偏见试图测量中微子能量。该方法是基于精确的事件的测量的传出中子动能和随后的评估的动量不平衡的平面上的横向传入的反中微子方向。对于使用细粒度三维闪烁体跟踪器测量的峰值约为600 MeV的反中微子通量，中微子能量分辨率预计约为7%，而使用传统中微子能量重建技术预计为15%。对于具有类似特性的其他探测器，可以获得类似的结果。
We propose and validate a method of antineutrino energy reconstruction for charged-current meson-less interactions on composite fully active targets containing hydrogen (such as hydrocarbon scintillator), which is largely free of the poorly understood nuclear effects that usually distort and bias attempts to measure neutrino energy. The method is based on the precise event-by-event measurement of the outgoing neutron kinetic energy and the subsequent assessment of the momentum imbalance on the plane transverse to the incoming antineutrino direction. For an antineutrino flux peaked at around 600 MeV measured using a finely grainedthree-dimensional scintillator tracker, the neutrino energy resolution is expected to be around 7%, compared to the 15% expected using traditional neutrino energy reconstruction techniques. Analogous results can be obtained for other detectors with similar characteristics.