For the first time, physicists have spotted a difference in the way matter and antimatter baryons decay, which could help to ...

Perplexingly, the amount of CP violation predicted by the Standard Model is many orders of magnitude too small to account for ...

Scientists study antimatter, investigating the ways in which it acts like ordinary matter and the ways in which it differs.

The antimatter particle is the partner of a massive matter particle called hyperhelium-4, and its discovery could help ...

It took more than 80,000 baryon decays for us to see matter–antimatter asymmetry with this class of particles for the first time." Particles are known to have identical mass and opposite charges ...

Antimatter and matter formed together after the Big Bang, but there's less antimatter in the universe. Antimatter has the opposite charge of matter, so if they were equal, they would cancel each ...

Antimatter — the mysterious substance that's the mirror opposite of matter in most ways — falls downward in gravity like everything else in the universe, a team of physicists reported ...