Science Alert reports:
The candidate culprit is a recently discovered subatomic particle called a d-star hexaquark. And in the primordial darkness following the Big Bang, it could have come together to create dark matter… explained nuclear physicist Daniel Watts of the University of York in the UK. “Our first calculations indicate that condensates of d-stars are a feasible new candidate for dark matter. This new result is particularly exciting since it doesn’t require any concepts that are new to physics….”

When six quarks combine, this creates a type of particle called a dibaryon, or hexaquark. We haven’t actually observed many of these at all. The d-star hexaquark, described in 2014, was the first non-trivial detection… If such a gas of d-star hexaquarks was floating around in the early Universe as it cooled in the wake of the Big Bang, according to the team’s modelling, it could come together to form Bose-Einstein condensates. And those condensates could be what we now call dark matter.

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Source:: Slashdot