Dark Matter Mystery Resolved?

Dark Matter Mystery

While we know that dark matter cannot be seen directly but the scientists believe that it exists because of its interaction with visible matter via gravity e.g. with stars and planets. It is made up of particles that do not absorb, reflect or emit light. Approximately 80% of our Universe could be made up of dark matter. Scientists have been studying it for decades but its physical origin has remained unknown.

According to the scientists at the University of York, a sub-atomic particle called the d-star hexaquark could be responsible for forming the mysterious “dark matter” during the Big Bang.

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The origin of dark matter in the universe is one of the biggest questions in science and one that, until now, has drawn a blank. Our first calculations indicate that condensates of d-stars are a feasible new candidate for dark matter and this new possibility seems worthy of further, more detailed investigation. The result is particularly exciting since it doesn’t require any concepts that are new to physics.

Professor Daniel Watts, Department of Physics at the University of York

The d-star hexaquark is composed of six quarks. These six quarks in a d-star result in a boson particle, which means they can combine together in very different ways to the protons and neutrons.

The Scientists at University of York suggest that shortly after the Big Bang, several d-star hexaquarks could have grouped together to form the fifth state of matter i.e. the Bose-Einstein condensate.

The next step to establish this new dark matter candidate will be to obtain a better understanding of how the d-stars interact – when do they attract and when do they repel each other.  We are leading new measurements to create d-stars inside an atomic nucleus and see if their properties are different to when they are in free space.

Dr Mikhail Bashkanov, Department of Physics at the University of York

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