From that data, its computers were able to positively identify 18 anti-alpha particles created.

FORBES: Scientists Detect Heaviest Known Antimatter Particle

The detector also enabled an analysis of the production rate of the anti-alpha particles, which was consistent with expectations.

FORBES: Scientists Detect Heaviest Known Antimatter Particle

When all the annihilations between matter and anti-matter particles had occurred (an event that took less than a second) what was left was all the matter that we see around us.

BBC: The problem with anti-matter

The conditions also create anti-quarks, which are the fundamental particles that make up the nuclei of anti-atoms.

FORBES: Scientists Detect Heaviest Known Antimatter Particle

Scientists working on the Alpha project at Cern are trying to find out by isolating and studying particles of anti-hydrogen.

BBC: The problem with anti-matter

So, instead of being a pure kaon and a pure anti-kaon, the two particles that go flying off are actually blends of each.

ECONOMIST: What��s the matter?

The Higgs boson decays too fast to detect directly, but decays into particles similar to those left behind by the decay of a top quark anti-top quark pair.

UNESCO: MEDIA SERVICES