In 1938, Italian physicist Ettore Majorana disappeared. While it is not known what exactly happened to him, he did leave behind the theoretical basis for a new type of particle; one that is its own antiparticle — the Majorana fermion. Today, Majorana fermions are one of many candidates for dark matter, the mysterious form of matter which makes up around 85% of the total matter in the universe. Knowing how Majorana fermions polarize and annihilate with each other can help focus experimental efforts to detect and better understand dark matter.
Presented by Lukas Karoly