论文标题
直接检测实验是否会限制与电子耦合的轴突样颗粒？
Do direct detection experiments constrain axionlike particles coupled to electrons?
论文作者
论文摘要
在这种阿尔卑斯山构成深色物质的假设下，一些实验室实验已发表了对凯夫-MEV范围内电子和质量微弱的轴突状颗粒（ALP）的限制。我们注意到，阿尔卑斯山辐射到光子中，并表明，对于这些实验表面上探测的参数空间的大部分，阿尔卑斯山的寿命比宇宙的年龄短。这样的阿尔卑斯山不能始终如一地构成暗物质，这严重影响了GERDA，Edelweiss-III，SuperCDMS和Majora的公开限制的解释。此外，伽马射线和X射线天文学的约束不包括更广泛的ALP电子耦合，并取代了6 KeV中的暗物质ALP的所有当前实验限制到1 MEV质量范围。这些结论是相当独立的，只能以ALP与其他粒子有其他耦合的理论中的显着微调来避免。
Several laboratory experiments have published limits on axionlike particles (ALPs) with feeble couplings to electrons and masses in the keV-MeV range, under the assumption that such ALPs comprise the dark matter. We note that ALPs decay radiatively into photons, and show that for a large subset of the parameter space ostensibly probed by these experiments, the lifetime of the ALPs is shorter than the age of the universe. Such ALPs cannot consistently make up the dark matter, which significantly affects the interpretation of published limits from GERDA, Edelweiss-III, SuperCDMS and Majorana. Moreover, constraints from gamma-ray and X-ray astronomy exclude an even wider range of the ALP-electron coupling, and supersede all current experimental limits on dark matter ALPs in the 6 keV to 1 MeV mass range. These conclusions are rather model-independent, and can only be avoided at the expense of significant fine-tuning in theories where the ALP has additional couplings to other particles.
