Particle physics is a field of physics that studies the fundamental particles and the forces that govern their interactions. These particles include both elementary particles, such as quarks and electrons, as well as composite particles like protons and neutrons. Particle physicists use high-energy accelerators and detectors to study these particles and their interactions, with the goal of understanding the fundamental laws of nature and the composition of the universe at its most basic level. This research area has important implications for our understanding of the universe and has led to the development of technologies such as medical imaging and particle accelerators.