暗物质的分子化学
Molecular Chemistry for Dark Matter
摘要：
分子冷却对于研究耗散暗物质晕子结构的形成是必不可少的，暗物质晕可能是黑洞等致密物体的宿主。在这里，我们分析的反应速率相关的氢分子的形成，解离和过渡，同时允许不同值的物理参数：耦合常数，质子质量和电子质量。对于所有的情况，我们重新标度了标准氢分子的反应速率，所以只要暗物质是弱耦合的，并且其中一个费米子比另一个重得多，我们的结果就有效。这些结果将允许一个强大的数值处理的宇宙结构，特别是分子冷却是重要的，在一个耗散的暗物质的情况下的迷你晕。
英文摘要：
Molecular cooling is essential for studying the formation of sub-structure of dissipative dark-matter halos that may host compact objects such as black holes. Here, we analyze the reaction rates relevant for the formation, dissociation, and transition of hydrogenic molecules while allowing for different values of the physical parameters: the coupling constant, the proton mass, and the electron mass. For all cases, we re-scale the reaction rates for the standard molecular hydrogen, so our results are valid as long as the dark matter is weakly coupled and one of the fermions is much heavier than the other. These results will allow a robust numerical treatment of cosmic structure, in particular for mini-halos for which molecular cooling is important, in a dissipative dark matter scenario.
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