Reconstructing the neutrino energy for in-ice radio detectors: A study for the Radio Neutrino Observatory Greenland (RNO-G)
Reconstructing the neutrino energy for in-ice radio detectors: A study for the Radio Neutrino Observatory Greenland (RNO-G)
复制标题
重建冰内射电探测器的中微子能量：格陵兰射电中微子观测站 (RNO-G) 的研究
DOI：
10.1140/epjc/s10052-022-10034-4
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Carter, K.
中科院分区：
文献类型：
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作者：
Aguilar, J. A.;Allison, P.;Beatty, J. J.;Bernhoff, H.;Besson, D.;Bingefors, N.;Botner, O.;Bouma, S.;Buitink, S.;Carter, K.
自 2021 年夏季以来，格陵兰岛射电中微子观测站 (RNO-G) 一直在通过探测格陵兰岛峰会站周围冰层中粒子簇射的无线电发射来寻找 energiesPeV 的天体物理中微子。我们提出了一项广泛的模拟研究，展示了 RNO-G 如何测量此类粒子级联的能量，进而用于估计引起粒子级联的传入中微子的能量。使用通道之间到达时间的差异确定中微子相互作用的位置，并使用基于信息场理论的新颖方法重建无线电信号的电场。根据这些特性，可以估计淋浴能量。我们证明，在适度的质量削减后，该方法可以实现簇射能量对数的 13% 不确定性，并估计这如何限制中微子的能量。本文提出的方法适用于所有类似的射电中微子探测器，例如所提出的 IceCube-Gen2 射电阵列。
Since summer 2021, the Radio Neutrino Observatory in Greenland (RNO-G) is searching for astrophysical neutrinos at energiesPeV by detecting the radio emission from particle showers in the ice around Summit Station, Greenland. We present an extensive simulation study that shows how RNO-G will be able to measure the energy of such particle cascades, which will in turn be used to estimate the energy of the incoming neutrino that caused them. The location of the neutrino interaction is determined using the differences in arrival times between channels and the electric field of the radio signal is reconstructed using a novel approach based on Information Field Theory. Based on these properties, the shower energy can be estimated. We show that this method can achieve an uncertainty of 13% on the logarithm of the shower energy after modest quality cuts and estimate how this can constrain the energy of the neutrino. The method presented in this paper is applicable to all similar radio neutrino detectors, such as the proposed radio array of IceCube-Gen2.