论文标题
来自宇宙射线散射在轴突状颗粒上的伽马射线信号
Gamma Ray Signals from Cosmic Ray Scattering on Axion-Like Particles
论文作者
论文摘要
暗物质（DM）可以由轴状颗粒（阿尔卑斯山）组成，并与光子和标准模型费米子耦合。在本文中，我们研究了由宇宙射线（CR）电子散射在背景阿尔卑斯山上产生的光子信号。对于一系列质量，我们发现这些界限可以在ALP电子耦合上放置竞争性新约束，尽管在许多模型中，寿命约束可能会取代这些界限。除了当前的费米限制外，我们还考虑了未来的电子宣传界限，这将对ALP-CR诱导的伽马射线具有更大的敏感性。
Dark Matter (DM) may be comprised of axion-like particles (ALPs) with couplings to photons and the standard model fermions. In this paper we study photon signals arising from cosmic ray (CR) electron scattering on background ALPs. For a range of masses we find that these bounds can place competitive new constraints on the ALP-electron coupling, although in many models lifetime constraints may supersede these bounds. In addition to current Fermi constraints, we also consider future e-Astrogram bounds which will have greater sensitivity to ALP-CR induced gamma-rays.
