Iguro Syuhei, Plestid Ryan, Takhistov Volodymyr
Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT), Engesserstraße 7, 76131 Karlsruhe, Germany.
Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
Phys Rev Lett. 2022 May 20;128(20):201101. doi: 10.1103/PhysRevLett.128.201101.
Magnetic monopoles have a long history of theoretical predictions and experimental searches, carrying direct implications for fundamental concepts such as electric charge quantization. We analyze in detail for the first time magnetic monopole production from collisions of cosmic rays bombarding the atmosphere. This source of monopoles is independent of cosmology, has been active throughout Earth's history, and supplies an irreducible monopole flux for all terrestrial experiments. Using results for robust atmospheric fixed target experiment flux of monopoles, we systematically establish direct comparisons of previous ambient monopole searches with monopole searches at particle colliders and set leading limits on magnetic monopole production in the ∼5-100 TeV mass range.
磁单极子有着悠久的理论预测和实验探索历史，对诸如电荷量子化等基本概念有着直接影响。我们首次详细分析了宇宙射线轰击大气层碰撞产生磁单极子的情况。这种磁单极子源与宇宙学无关，在地球历史上一直存在，并为所有地面实验提供了不可减少的磁单极子通量。利用可靠的大气固定靶实验中磁单极子通量的结果，我们系统地将先前对环境磁单极子的搜索与粒子对撞机上的磁单极子搜索进行了直接比较，并对5 - 100 TeV质量范围内磁单极子的产生设定了领先限制。
