论文标题
暗物质或相关错误：AMS-02抗蛋白质过量的系统学
Dark matter or correlated errors: Systematics of the AMS-02 antiproton excess
论文作者
论文摘要
几项研究指出，AMS-02抗蛋白酶光谱的过量，刚度为10-20 GV。发现其光谱特性与质量50-100 GEV的深色粒子一致，该粒子以大致在热速率上进行强调。在这项工作中，我们重新投资了抗蛋白质过量，包括所有相关的系统错误来源。最重要的是，我们对AMS-02系统误差中的相关性进行现实估计，该误差可能会“假”一个深色的信号。相关刚度范围内的主要系统学起源于横截面中的不确定性，用于吸收检测器材料中宇宙射线。我们第一次计算它们在全格伯里群岛非弹性散射理论中的相关性。 AMS-02相关性以协方差矩阵的形式进入我们对暗物质的光谱搜索，我们为宇宙射线社区公开可用。我们发现，一旦考虑到所有系统学，包括派生的AMS-02误差相关性，抗蛋白质过量的全球意义被降低至1 $σ$以下。在质量范围10-10000 GEV中，在AMS-02抗蛋白酶数据中没有明显的偏好对深色 - 肌电信号的偏好。
Several studies have pointed out an excess in the AMS-02 antiproton spectrum at rigidities of 10-20 GV. Its spectral properties were found to be consistent with a dark-matter particle of mass 50-100 GeV which annihilates hadronically at roughly the thermal rate. In this work, we reinvestigate the antiproton excess including all relevant sources of systematic errors. Most importantly, we perform a realistic estimate of the correlations in the AMS-02 systematic error which could potentially "fake" a dark-matter signal. The dominant systematics in the relevant rigidity range originate from uncertainties in the cross sections for absorption of cosmic rays within the detector material. For the first time, we calculate their correlations within the full Glauber-Gribov theory of inelastic scattering. The AMS-02 correlations enter our spectral search for dark matter in the form of covariance matrices which we make publicly available for the cosmic-ray community. We find that the global significance of the antiproton excess is reduced to below 1 $σ$ once all systematics, including the derived AMS-02 error correlations, are taken into account. No significant preference for a dark-matter signal in the AMS-02 antiproton data is found in the mass range 10-10000 GeV.
