标题： 利用LHAASO对蟹状星云PeV伽马射线的观测检验电子的洛伦兹不变性 显示英文标题

标题： Testing Lorentz invariance of electrons with LHAASO observations of PeV gamma-rays from the Crab Nebula

摘要： 最近，高海拔宇宙线观测站（LHAASO）报告了来自蟹状星云的高达$1.1~\textrm{PeV}$能量的伽马射线辐射的探测结果。 利用反康普顿电子不存在真空契伦科夫效应这一事实，我们将先前对电子色散关系中线性阶洛伦兹不变性破坏（LV）限制提高了$10^{4}$倍。 我们表明，电子的LV效应受到严重约束，与某些量子引力（QG）模型预期的特定类型的LV一致，例如由弦/ D膜激发的空间泡沫模型。 我们主张，这类模型得到了LHAASO观测到的蟹状星云约束以及目前对于光子的各种LV现象的支持。 显示英文摘要

摘要： The Large High Altitude Air Shower Observatory~(LHAASO) recently reported the detection of gamma-ray emissions with energies up to $1.1~\textrm{PeV}$ from the Crab Nebula. Using the absence of vacuum Cherenkov effect by inverse-Compton electrons, we improve previous bounds to linear-order Lorentz invariance violation (LV) in the dispersion relations of electrons by $10^{4}$ times. We show that the LV effect on electrons is severely constrained, compatible with certain type of LV as expected by some models of quantum gravity~(QG), such as the string/D-brane inspired space-time foam. We argue that such models are supported by the Crab Nebula constraints from the LHAASO observations, as well as various LV phenomenologies for photons to date.