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arXiv 2106.01012hep-phastro-ph.HE
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UHE空气簇射中的光子衰变:Lorentz破坏的严格限制

Photon decay in UHE air showers: stringent bound on Lorentz violation

Fabian Duenkel, Marcus Niechciol, Markus Risse

摘要:

在由超高能(UHE)宇宙射线引起的大范围空气簇射中,预计将产生能量远高于其他方法可获得的能量的二次光子。已经表明,这种光子的衰变,在某些理论允许洛伦兹破坏的情况下,可能会导致簇射发展的显着变化。基于对簇射最大值$\left<X_\text{max}\right>$的平均深度的观测,在以前的工作中已经对洛伦兹破坏进行了严格的限制。在这里,我们包括了一个额外的可观测到的从太阳到阵雨的波动$σ(X_\text{max})$。将$\left<X_\text{max}\right>$和$σ(X_\text{max})$与簇射观测相结合,可以对UHE光子的可能衰变进行更严格的测试,从而将先前的限制提高了50倍。

英文摘要:

In extensive air showers induced by ultra-high-energy (UHE) cosmic rays, secondary photons are expected to be produced at energies far above those accessible by other means. It has been shown that the decay of such photons, as possible in certain theories allowing Lorentz violation, can lead to significant changes of the shower development. Based on observations of the average depth of the shower maximum $\left<X_\text{max}\right>$, a stringent bound on Lorentz violation has been placed in a previous work. Here we include the shower-to-shower fluctuations $σ(X_\text{max})$ as an additional observable. The combined comparison of $\left<X_\text{max}\right>$ and $σ(X_\text{max})$ to shower observations allows a much stricter test of the possible decay of UHE photons, improving the previous bound by a factor of 50.

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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