论文标题
无形的类似轴颗粒的衰减：约束和前景
Invisible decays of axion-like particles: constraints and prospects
论文作者
论文摘要
轴突状颗粒（ALP）可以为黑暗部门的新状态提供门户。当ALP主要腐烂时，我们研究该门户网站的现象学，而其与标准模型部门的相互作用基本上通过其与电子和/或光子的耦合进行。除了通过ALP-Photon耦合进行通常的生产外，我们还从各种对撞机和梁转储实验中重新分析了现有的限制，包括通过电子/正电子相互作用的ALP产生。我们进一步讨论了这些限制之间的相互作用以及同时解释MUON和电子磁矩异常的有趣可能性。最后，我们说明了在LNF正电子固定目标实验PADME的ALP搜索前景以及升级的实验设置的未来范围。
Axion-like particles (ALPs) can provide a portal to new states of a dark sector. We study the phenomenology of this portal when the ALP mainly decays invisibly, while its interaction with the standard model sector proceeds essentially via its coupling to electrons and/or photons. We re-analyse existing limits from various collider and beam dump experiments, including in particular ALP production via electron/positron interactions, in addition to the usual production through ALP-photon coupling. We further discuss the interplay between these limits and the intriguing possibility of explaining simultaneously the muon and electron magnetic moment anomalies. Finally, we illustrate the prospects of ALP searches at the LNF positron fixed-target experiment PADME, and the future reach of an upgraded experimental setup.
