论文标题
用HAWC观察到Tev Blazars的轴突样颗粒
Constraining Axion-Like Particles with HAWC Observations of TeV Blazars
论文作者
论文摘要
轴突状颗粒（ALP）是一类庞大的伪量表玻色子，通常是由标准模型扩展中损坏的对称性产生的。在许多情况下，阿尔卑斯山可以与具有高磁场的区域中的光子混合。来自遥远来源的光子可以与阿尔卑斯山混合，然后在银河系磁场中混合回光子之前，然后将它们不受侵犯在宇宙中。因此，光子可以横穿通常会阻塞或减弱其信号的区域。在本文中，我们研究了遥远的大部分观察到的TEV $γ$ ray射线观测，利用此类信号的明显$γ$ ray衰减来寻找可能是由于ALP-Photon混合而引起的多个光子通量。我们发现在七个大麻的堆叠人群中没有这样的过剩，并且会限制ALP-Photon耦合的常数低于$ \ sim $ \ sim $ 3 $ \ times $ 10 $^{ - 11} $ gev $^$^{ - 1} $，以低于300 NEV。这些结果具有竞争力，或者比在此质量范围内领先的陆地和天体物理限制更好。
Axion-like particles (ALPs) are a broad class of pseudo-scalar bosons that generically arise from broken symmetries in extensions of the standard model. In many scenarios, ALPs can mix with photons in regions with high magnetic fields. Photons from distant sources can mix with ALPs, which then travel unattenuated through the Universe, before they mix back to photons in the Milky Way galactic magnetic field. Thus, photons can traverse regions where their signals would normally be blocked or attenuated. In this paper, we study TeV $γ$-ray observations from distant blazars, utilizing the significant $γ$-ray attenuation expected from such signals to look for excess photon fluxes that may be due to ALP-photon mixing. We find no such excesses among a stacked population of seven blazars and constrain the ALP-photon coupling constant to fall below $\sim$3$\times$10$^{-11}$ GeV$^{-1}$ for ALP masses below 300 neV. These results are competitive with, or better than, leading terrestrial and astrophysical constraints in this mass range.
