Dark Plasma charged under unbroken U(1)' gauge interaction

[cube137]

https://arxiv.org/abs/1512.06471

In the paper, dark plasma (that is, NOT baryonic plasma) was suggested. I'd like to know if it is compatible with many cosmic phenomena (like bullet clusters). Can you think of one where the data (especially new ones) don't support it?

In baryonic matter. Plasma only occurs when energy is so high that the electrons separate from the nucleus.

In dark plasma theory. Is it also the dark electrons separating from the dark nucleus or can the particles just be highly energetic and independent. In baryonic matter, what kind of plasma where it is not based on separated electrons from nucleus?

 

[kimbyd]

I don't know about this specifically, but usually observations like the Bullet Cluster place upper limits on how strongly dark matter can self-interact. You can still have some "dark charge", and as long as the interactions are weak enough they will still fit with observations. So the question is: are the interactions strong enough to be detectable in future experiments, but weak enough to not clash with existing observations? My understanding is that there's a range of the parameter space that allows this possibility.