论文标题
Lhaaso 18 TEV GRB221009A光子的中微子起源
Neutrino Origin of LHAASO's 18 TeV GRB221009A Photon
论文作者
论文摘要
Lhaaso合作从最新的GAMMA射线爆发（GRB）GRB221009A中检测到具有10 TEV的能量的光子。考虑到此事件的红移，$ z \ sim 0.15 $，这种能量的光子有望在到达地球之前与弥漫性外层次背景光（EBL）相互作用。在本文中，我们对Lhaaso报道的最有活力的18 TEV事件提供了一种新颖的中微子相关解释。我们发现，最小的可行场景涉及光和无菌中微子之间的混合和过渡磁矩门户。无菌中微子的产生通过混合有效地发生，而过渡磁矩门户则控制参数空间中的衰减速率，在该空间中，通过混合到非光子最终状态，树级衰变被抑制。我们对这一事件的解释虽然与地面限制一致，但指向非标准的宇宙学。
LHAASO collaboration detected photons with energy above 10 TeV from the most recent gamma-ray burst (GRB), GRB221009A. Given the redshift of this event, $z\sim 0.15$, photons of such energy are expected to interact with the diffuse extragalactic background light (EBL) well before reaching Earth. In this paper we provide a novel neutrino-related explanation of the most energetic 18 TeV event reported by LHAASO. We find that the minimal viable scenario involves both mixing and transition magnetic moment portal between light and sterile neutrinos. The production of sterile neutrinos occurs efficiently via mixing while the transition magnetic moment portal governs the decay rate in the parameter space where tree-level decays via mixing to non-photon final states are suppressed. Our explanation of this event, while being consistent with the terrestrial constraints, points to the non-standard cosmology.
