论文标题
通过红外光谱法间接检测EV暗物质
Indirect Detection of eV Dark Matter via Infrared Spectroscopy
论文作者
论文摘要
红外光谱已显着开发。特别是，可以在最新的光谱仪中以高光谱和角度分辨率测量红外光子。由于标准模型（例如暗物质（DM））的粒子的衰减和歼灭，它们对单色光子敏感，而对形成连续光谱的背景光子不敏感。在本文中，我们使用红外光谱仪研究了DM衰减到红外光中的间接检测。特别是，我们表明可以克服严重的热和天体物理噪声。作为具体的例子，讨论了在James Webb Space Telescope（JWST）上安装在麦哲伦粘土650万望远镜和近红外光谱仪（NIRSPEC）上安装在Magellan Clay 650万望远镜和近红外光谱仪（NIRSPEC）上的高度分散和灵敏度（Wine）的热红外光谱仪。我们表明，在麦哲伦望远镜（JWST）中使用Wineered（NirSpec样光谱仪）进行了几个小时的测量，可以在质量范围内探测类似轴的粒子DM $ M_DM $ M_T = 1.8-2.7-2.7-2.7 \，$ 0.5-4 \，$ 0.5-4 \，$ ev） $ g_ {ϕγγ} \ gtrsim 10^{ - 11} {\ rm gev}^{ - 1} $。还提出了互补方法，利用高分辨率，例如信号光子线的多普勒偏移的测量以及在82m Subaru望远镜下使用红外摄像头和光谱仪（IRCS）周围的DM衰减的搜索。
Infrared spectroscopy has been developed significantly. In particular, infrared photons can be measured with high spectral and angular resolution in state-of-art spectrographs. They are sensitive to monochromatic photons due to the decay and annihilation of particles beyond the Standard Model, such as dark matter (DM), while insensitive to background photons that form a continuous spectrum. In this paper, we study the indirect detection of the DM decaying into infrared light using infrared spectrographs. In particular, we show that serious thermal and astrophysical noises can be overcome. As concrete examples, the Warm INfrared Echelle spectrograph to Realize Extreme Dispersion and sensitivity (WINERED) installed at the Magellan Clay 6.5m telescope and Near-Infrared Spectrograph (NIRSpec) at the James Webb Space Telescope (JWST) are discussed. We show that a few hours of measurements of a faint dwarf spheroidal galaxy with WINERED (NIRSpec-like spectrograph) in the Magellan telescope (JWST) can probe an axion-like particle DM in the mass range $m_ϕ=1.8 - 2.7\,$eV ($0.5-4\,$eV) with a photon coupling $g_{ϕγγ}\gtrsim 10^{-11}{\rm GeV}^{-1}$. Complemental approaches, taking advantage of the high resolutions, such as the measurement of the Doppler shift of the signal photon lines and the possible search of the DM decay around the Milky Way galaxy center with Infrared Camera and Spectrograph (IRCS) at 8.2m Subaru telescope, are also presented.
