论文标题
中微子门户，地面上微子和大气中微子
Neutrino Portals, Terrestrial Upscattering, and Atmospheric Neutrinos
论文作者
论文摘要
我们考虑在地球内部产生重型中性瘦素（HNL）的大气中微子的上微子进行扫描，随后在大体积探测器（例如Super-Kamiokande或Dune）内部腐烂。我们计算到达探测器的射向HNL的通量以及可见衰减产物的结果事件率。使用Super-Kamiokande的大气中微子数据集，我们发现了偶极子耦合的新领先限制，以在大约10 MeV和100 MeV之间进行HNL质量的任何风味。对于与tau中微子的大规模混合，我们在HNL质量附近探索了$ \ sim 20 $ mev的新参数空间，并提供了未来改进的前景。我们还讨论了未来实验的前景，例如沙丘，朱诺和Hyper-Kamiokande。
We consider the upscattering of atmospheric neutrinos in the interior of the Earth producing heavy neutral leptons (HNLs) which subsequently decay inside large volume detectors (e.g. Super-Kamiokande or DUNE). We compute the flux of upscattered HNLs arriving at a detector, and the resultant event rate of visible decay products. Using Super-Kamiokande's atmospheric neutrino dataset we find new leading constraints for dipole couplings to any flavor with HNL masses between roughly 10 MeV and 100 MeV. For mass mixing with tau neutrinos, we probe new parameter space near HNL masses of $\sim 20$ MeV with prospects for substantial future improvements. We also discuss prospects at future experiments such as DUNE, JUNO, and Hyper-Kamiokande.
