Theia: an advanced optical neutrino detector
Theia: an advanced optical neutrino detector
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DOI：
10.1140/epjc/s10052-020-7977-8
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发表时间：
2020-05-13
影响因子：
4.4
通讯作者：
Zuber, K.
中科院分区：
文献类型：
--
作者：
Askins, M.;Bagdasarian, Z.;Zuber, K.
液体闪烁体、高效率、快速光子探测器和色度光子分类的新发展为建立能够区分切伦科夫信号和闪烁信号的大规模探测器打开了可能性。这种探测器可以利用切伦科夫光重建粒子的方向和物种，同时还具有闪烁体探测器的优良能量分辨率和低阈值。该探测器位于地下深处，利用计算和重建方面的新技术，可以实现前所未有的背景抑制水平，使丰富的物理计划能够涵盖核、高能和天体物理主题，并跨越数百keV到anyGeV的动态范围。科学计划将包括观测低能和高能太阳中微子，确定中微子质量有序度和测量中微子违反CP的d相，观测扩散超新星中微子和来自超新星爆发的中微子，灵敏地搜索核子衰变，并最终搜索无中微子双β衰变，灵敏度达到中微子质量相空间的正常有序区。本文描述了Theia，这是一种探测器设计，它以一种实用和负担得起的方式结合了这些新技术，以实现上述科学目标。
New developments in liquid scintillators, highefficiency, fast photon detectors, and chromatic photon sorting have opened up the possibility for building a large-scale detector that can discriminate between Cherenkov and scintillation signals. Such a detector could reconstruct particle direction and species using Cherenkov light while also having the excellent energy resolution and low threshold of a scintillator detector. Situated deep underground, and utilizing new techniques in computing and reconstruction, this detector could achieve unprecedented levels of background rejection, enabling a rich physics program spanning topics in nuclear, high-energy, and astrophysics, and across a dynamic range from hundreds of keVtomanyGeV. The scientific program would include observations of low- and high-energy solar neutrinos, determination of neutrino mass ordering and measurement of the neutrino CP-violating phase d, observations of diffuse supernova neutrinos and neutrinos from a supernova burst, sensitive searches for nucleon decay and, ultimately, a search for neutrinoless double beta decay, with sensitivity reaching the normal ordering regime of neutrino mass phase space. This paper describes Theia, a detector design that incorporates these new technologies in a practical and affordableway to accomplish the science goals described above.