A new hypothetical particle could solve two cosmic mysteries at once: what dark matter is made of, and why there’s enough matter for us to exist at all. Super Kamiokande detector designed to hunt Neutrinos and the hypothetical X Particle.
“We know you have to have these two ingredients to the universe, both atoms and dark matter,” said physicist Kris Sigurdson of the University of British Columbia, coauthor of a paper describing the new particle. “Since you know you need those ingredients anyway, it seems like a natural thing to try to explain them from the same mechanism.”
Cosmologists think the same amount of matter and antimatter should have been created in the Big Bang, and particles and antiparticles immediately started colliding and extinguishing each other. But the fact that stars, planets and physicists exist now is proof that that’s not what happened.
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