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What if the dark matter world was a mirror of our own, just with broken rules? That might explain why dark matter is so abundant yet invisible. No, a new theory suggests.
dark matter A mysterious and unknown substance that is thought to make up most of the mass of the universe. For every 2 pounds (1 kilogram) of ordinary matter, there are approximately 10 pounds (5 kilograms) of dark matter. It does not interact with light or ordinary matter. The only way scientists can detect it is through the movement of stars within galaxies, Growth of super large structures In space time.
Because matter and dark matter operate by different rules, it may be easy to think that one completely dominates the other. However, despite their vastly different properties, the amounts of normal matter and dark matter are still about the same. It seems like a strange coincidence. To explain this, scientists have proposed that there may be some kind of hidden connection between them.they published a study Published in preprint journal arXiv on January 22nd.
The researchers hypothesized that every physical interaction in ordinary matter has a mirror reflected in the dark matter world. This is a new kind of symmetry in nature, the researchers said, and it could be the link between the ordinary world and the world of dark matter.
This symmetry helps explain why dark matter and ordinary matter have roughly the same abundance.
Related: Our universe is merging with a ‘baby universe’, causing expansion, new theoretical research suggests
The researchers point out another strange coincidence in their paper. In normal matter physics, neutrons and protons have approximately the same mass, which allows them to combine to form stable atoms. If protons were even slightly heavier, they would be completely unstable and would disintegrate in just a few minutes, making it impossible to form atoms. In this imaginary scenario, the universe would be left with an ocean of free-floating neutrons.
Perhaps this imaginary broken universe could become reality in a dark matter mirror version of our universe, researchers suggest. A special combination of physics has led to protons having almost the same mass as neutrons. Perhaps in the mirror of dark matter, that combination of physics plays out differently, with “dark protons” evaporating, leaving behind an ocean of “dark neutrons” – what we know as dark matter. I did.
This proposed mirror model takes into account the rich interaction possibilities between dark matter particles (dark atoms, dark chemistry, and dark matter). Dark periodic table of dark elements — You can never have too many interactions, the researchers noted. If dark matter interacts with itself frequently, it will tend to clump together much more than scientists think. Therefore, most of the dark matter must be relatively simple: a sea of freely floating neutral particles.
These additional interactions, a dark mirror of our chemical world, may allow future scientists to test this theory. In the early universe, ordinary matter underwent nucleosynthesis when the first elements were formed within nuclear plasma. If this new idea is correct, mirror nucleosynthesis has also occurred in dark matter. The chaotic early days may have opened a channel between the two worlds, allowing them to influence each other.
By carefully measuring the rate at which elements form (something the next generation of cosmological observatories hope to achieve), scientists may find evidence of one of these channels, providing a mirror-like glimpse into the dark universe. Maybe you can.
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