That was fairly easy, wasn't it? Definitely way easier than finding neutrinoless ββ decay, which is a very challenging endevour and the very aim of the LEGEND experiment!
Ettore Majorana was a brilliant Italian physicist who proposed in 1937, at age 31, the possibility for fermions to be their own antiparticle. This is what is known as the Majorana nature of particles and could be the key to understand the matter-antimatter asymmetry in our Universe.
Unfortunately, Ettore Majorana disappeared before he could further contribute to particle physics. Nonetheless, we decided to include him in our website to honor him and his very relevant work, which is to this day, essential for neutrinoless ββ decay experiments.
You are now challenged to find him in some other four places. It won't be so easy anymore, good luck in your rare-event search!