The discussion revolves around the hypothesis that dark matter could be composed of neutrinos, with a focus on both standard and sterile neutrinos. Participants explore the implications of neutrinos' mass and behavior in relation to dark matter's characteristics.
Participants express differing views on the role of neutrinos in dark matter, with some suggesting sterile neutrinos could be a possibility while others maintain that standard neutrinos are not viable candidates. The discussion remains unresolved regarding the exact nature of dark matter.
Participants reference the mass and behavior of neutrinos but do not delve into the specific mathematical or theoretical frameworks that support their claims. The discussion lacks consensus on the viability of sterile neutrinos as dark matter candidates.
nicksauce said:It used to be thought that this was a possibility, but these days we are pretty sure dark matter is not neutrinos. That is to say, dark matter is composed primarily of something other than neutrinos. This is because they don't have enough mass, and because they are moving around too fast to collapse into the structures that we observe.