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arXiv 2108.00869hep-phastro-ph.HEgr-qc
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LHAASO的gamma-ray光子对Lorentz对称性的影响

The implications of gamma-ray photons from LHAASO on Lorentz symmetry

Yi Ling, Yuxuan Liu, Sai Wang, Meng-He Wu

摘要:

大型高海拔空气簇射天文台(LHAASO)报告了从12个伽马射线源中测量到高达1.42 PeV的高能光子。我们关注LHAASO数据对这种能级Lorenz对称性命运的影响,因此我们考虑了宇宙微波背景(CMB)中γ射线与光子的相互作用,计算了这些γ射线源的光子的光学厚度、平均自由程以及存活概率。采用标准狭义相对论预测的阈值,发现观测到的γ射线光子的最低生存概率约为0.60,这是一个相当高的值,意味着能量高于阈值的大量光子可以到达地球而不破坏洛伦兹对称性。我们的结论是,这仍然是远认为洛伦兹对称性将被破坏,由于目前的观测LHAASO。

英文摘要:

The Large High Altitude Air Shower Observatory (LHAASO) has reported the measurement of photons with high energy up to 1.42 PeV from twelve gamma-ray sources. We are concerned with the implications of LHAASO data on the fate of Lorenz symmetry at such high energy level, thus we consider the interaction of the gamma ray with those photons in cosmic microwave background (CMB), and compute the optical depth, the mean free path as well as the survival probability for photons from all these gamma-ray sources. Employing the threshold value predicted by the standard special relativity, it is found that the lowest survival probability for observed gamma ray photons is about 0.60, which is a fairly high value and implies that abundant photons with energy above the threshold value may reach the Earth without Lorentz symmetry violation. We conclude that it is still far to argue that the Lorentz symmetry would be violated due to the present observations from LHAASO.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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