Vahsen Lab

Atomic matter consists of only three elementary matter particles, the up-quark, the down-quark, and the electron.

However, physicists routinely produce other types of elementary particles in experiments. These particles include anti-matter particles.

For example, the anti-particle corresponding to the up-quark is the anti-up-quark, while the anti-electron is more commonly known as the positron.

The international Belle II experiment, pictured above, carries out highly precise comparisons of matter and anti-matter.