two kinds of dark matter

I realized today that any kinematic calculations one might do relating dark matter experimental data to constraints on the dark matter's physical properties are all non-relativistic. Duh! I started calculations relevant to reinterpretation of dark-matter experiments in terms of a dark-matter model in which there are two dark matter species with a small mass difference (the project assigned to me by Weiner). Apparently everything I am doing has been done before, but I am not yet discouraged.

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