论文标题
蟹状星云高能伽马射线的轴轴和深色光子极限
Axion and dark photon limits from Crab Nebula high energy gamma-rays
论文作者
论文摘要
从蟹状星云中观察到宇宙子-PEV伽马射线，可以在数百个TEV量表上测试宇宙射线光子透明度的可能性。假设由于加速电子逆孔子散射而导致的源伽马射线排放没有偏差，那么较高的事件能量可以扩大对新物理学影响的约束。我们考虑伽马射线和轴线/暗光子之间的振荡，以及在暗光子暗物质的情况下，伽马射线吸收的衰减效果。将最近的AS $γ$和HAWC子PEV数据与较早的魔术和HEGRA数据相结合，类似轴的粒子在$ 10^{ - 7} -7} -7} -10^{ - 6} $ ev质量范围内，其中构建$ g_ {aγ} $限制在$ {1.8} $ {1.8} \ times times times 10^$ 10^$ 10^$^$ gy下。相比之下，由于具有深色光子的振荡而引起的伽马射线通量衰减会导致混合参数的约束非常弱。 $ε\ Lessim $ 0.2，用于$ 10^{ - 7} $和$ 10^{ - 6} $ ev之间的深色光子质量。深色光子暗物质限制的直接散射$ε\ Lessim $ 0.01 $ 0.01 $ 6 $至$ 400 $ EV。
The observation of cosmic sub-PeV gamma-rays from the Crab Nebula opens up the possibility of testing cosmic ray photon transparency at the multi-hundred TeV scale. Assuming no deviation from a source gamma-ray emission due to accelerated electron inverse-Compton scattering, higher event energies can extend constraints on the effects of new physics; We consider oscillation between gamma-rays and axions/dark photons, plus attenuation effects from gamma-ray absorption in the case of dark photon dark matter. Combining the recent AS$γ$ and HAWC sub-PeV data with earlier MAGIC and HEGRA data, axion-like particles are most constrained in the $10^{-7}-10^{-6}$ eV mass range, where the coupling $g_{aγ}$ is constrained to be below ${1.8}\times 10^{-10}$ GeV$^{-1}$. In comparison, gamma ray flux attenuation due to oscillation with a dark photon leads to a very weak constraint on the mixing parameter; $ε\lesssim$ 0.2 for dark photon mass between $10^{-7}$ and $10^{-6}$ eV. Direct scattering from dark photon dark matter limits $ε\lesssim$ 0.01 for masses between $6$ and $400$ eV.
