[ianburrell]

Neutrinos interact with barionic batter through weak nuclear force. Dark matter can't be normal neutrinos because they move at close to light speed and we know that dark matter is cold, slow moving. The best dark matter candidate are WIMPs which only interact with gravity and weak force. Heavier, unknown neutrinos are possibility but would mess up Standard Model.

There are detectors that are trying to find weak force interactions. They haven't found anything yet which is constraining paramters of dark matter particles.

[dogma1138]

I didn’t think neutrinos are a good candidate for dark matter despite being wimps all I said is that this is the first time I heard of that people who don’t accept dark matter think that interaction with ‘gravity’ requires also interaction with electromagnetism despite us having pretty solid examples of things that we know for sure that they exist that do not follow that requirement.