Testing Lorentz Violation with IceCube Neutrinos
Testing Lorentz Violation with IceCube Neutrinos
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DOI：
10.3390/universe8050260
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发表时间：
2022-04
期刊：
影响因子：
2.9
通讯作者：
Huiming Zhang;Lili Yang
中科院分区：
文献类型：
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作者：
Huiming Zhang;Lili Yang
量子引力引起的洛仑兹破坏（LV）在比普朗克尺度低得多的能量下得到了越来越多的观测证据。在最近的研究中，TeV的中微子和MeV的伽玛射线暴（GRB）的光子之间的飞行时间的差异已被用来限制LV的能量标度，基于能量依赖的速度变化。在这里，我们进行了更新的7.5年高能启动事件（HESE），中微子警报事件检测到的冰立方，和一个完整的样本超过7000 GRB之间的相关性研究，我们发现了6个GRB中微子候选人，包括4个警报和2个轨道事件。我们得到了量子引力的一阶能量标度EQG=8−5+15× 10 ~（17）GeV，这与其他作者的工作是一致的.我们认为，中微子和反中微子可以分别识别，由于延迟或提前的观察时间。对于未来的中微子点源搜索研究，不同粒子的到达时间差可能不得不考虑。
Lorentz violation (LV) induced by Quantum Gravity has been tested at much lower energies than the Planck scale with more and more observational evidence. In recent studies, the time of flight difference between the TeV neutrino and MeV photon from Gamma Ray Bursts (GRBs) have been used to constrain the LV energy scale, based on the energy-dependent speed variation. Here, we performed a correlation study between the updated 7.5 year high-energy starting events (HESE), neutrino alert events detected by IceCube, and a full sample of more than 7000 GRBs, and we found six GRB-neutrino candidates, including four alerts and two track events. We obtained the first order energy scale of quantum gravity, namely EQG=8−5+15×1017GeV, which was consistent with other authors‘ work. We suggest that neutrinos and anti-neutrinos can be identified, respectively, due to the delay or advance of the observed time. For future point source search study of neutrinos, the arrival time difference of different particles may have to be taken into account.