The discussion revolves around the hypothesis of a 6-quark particle as a potential candidate for dark matter. Participants explore the implications of this idea, its testability, and its compatibility with existing cosmological observations and theories, including big bang nucleosynthesis and the cosmic microwave background.
Participants generally disagree on the plausibility of the 6-quark particle as a dark matter candidate, with multiple competing views regarding its properties and implications for existing cosmological models.
Participants highlight limitations in the original hypothesis, including assumptions about particle interactions and the lack of clarity on how these particles would fit within established frameworks of baryonic matter and dark matter.
Neutron has a magnetic dipole moment but no charge. Plenty of nuclei have no dipole moment.AndyG said:I don't quite understand how this could be a dark matter candidate as it is made up of charged particles (quarks) thus should interact with light ... which, by definition, makes it matter not dark matter
I'm not defending the hypothesis, but I think the idea is that these Bose-Einstein condensates of hexaquarks condensed out before big bang nucleosynthesis. Then they would not impact the total amount of baryonic matter we see from BBN or the CMB.mfb said:We know the total amount of baryonic matter from big bang nucleosynthesis and the cosmic microwave background. I don't see how such an addition could have stayed undetected. The authors don't discuss this at all, which is a bad sign.