Does dark matter interact with Baryons?

[wolram]

This paper says they do. but I have been lead to believe that DM only interacts with gravity
https://arxiv.org/abs/1811.08843
What is the standard view?

 

[Orodruin]

In most DM models there are some weak interactions with standard model particles. For your typical WIMP scenario those interactions are of more or less the same strength as the weak interactions but this generally depends on the dark matter model. You can never prove a negative so you can never exclude dark matter having some interactions with baryons. What you can do is place bounda on the strength of those interactions.

 

[mathman]

No interactions have been detected.

 

[phyzguy]

Nobody knows.

 

[Sanborn Chase]

Excellent paper, wolram. Thanks.