论文标题
宇宙伽马射线对暗物质间接影响的约束
Cosmic Gamma Ray Constraints on the Indirect Effects of Dark Matter
论文作者
论文摘要
观察到的高能量宇宙射线（CR）正电子的异常过量被广泛讨论为暗物质（DM）的间接证据。但是，任何宇宙正电子的来源都不可避免地是伽马辐射的来源。通过DM颗粒衰变（或歼灭）对CR异常解释的最小依赖性测试与由于此类过程中的伽马产生过量而导致的γ-射线背景有关。在这项工作中，我们对DM的伽马射线产生施加了观察性约束。然后，我们研究了DM衰变中伽马产量的可能抑制作用。这种DM颗粒在多组分的深色原子模型中产生。还考虑了相互作用顶点对伽马抑制的影响。找不到基本的伽马抑制作用。但是，一些次要的揭示了。
The observed anomalous excess of high-energy cosmic ray (CR) positrons is widely discussed as possible indirect evidence for dark matter (DM). However, any source of cosmic positrons is inevitably the source of gamma radiation. The least model dependent test of CR anomalies interpretation via DM particles decays (or annihilation) is connected with gamma-ray background due to gamma overproduction in such processes. In this work, we impose an observational constraint on gamma ray production from DM. Then, we study the possible suppression of gamma yield in the DM decays into identical final fermions. Such DM particles arise in the multi-component dark atom model. The influence of the interaction vertices on the gamma suppression was also considered. No essential gamma suppression effects are found. However, some minor ones are revealed.
