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.
Dark matter is a hypothetical type of matter that does not interact with light or other forms of electromagnetic radiation. It is thought to make up about 85% of the total matter in the universe.
A 6-quark particle is a theoretical subatomic particle that is made up of six quarks. Quarks are elementary particles that make up protons and neutrons, which are the building blocks of atoms.
Some theories propose that dark matter is made up of 6-quark particles, specifically a type called "axions." These particles are predicted by the theory of quantum chromodynamics (QCD) and are thought to be extremely light and weakly interacting.
Dark matter plays a crucial role in the universe by providing the gravitational force necessary to hold galaxies and galaxy clusters together. Without dark matter, these structures would not have enough mass to maintain their shape and would eventually break apart.
Scientists are studying dark matter in a variety of ways, including through astronomical observations, particle accelerator experiments, and theoretical calculations. Some experiments, such as the Large Hadron Collider, are specifically designed to search for 6-quark particles that could be a component of dark matter.