What is your favourite particle and why?

We have conducted a large-scale international study with high-school teachers (N=530) and high-school students (N=959) from all around the world to investigate and document what they consider as their favourite particles. We found five particles to be highly prominent in both groups, namely the Higgs boson, the neutrino, the electron, the photon and the gluon. Moreover, we did not find any significant differences with regard to the teachers’ and students’ nationality or gender. In this article, we present our findings in detail and give insight into the teachers’ and students’ justifications of why they chose a specific particle.