High energy physics, also known as high-energy particle physics, is a branch of physics that studies the behavior of particles at very high energy levels. This field aims to understand the fundamental particles and forces that make up the universe, including exploring the properties of subatomic particles, such as quarks and leptons, as well as the fundamental forces of nature, such as gravity, electromagnetism, and the strong and weak nuclear forces. High energy physics often involves experiments conducted at particle accelerators, such as the Large Hadron Collider, to create and study particles at extremely high energies in order to test theoretical models and discover new phenomena. This research area is crucial for advancing our understanding of the fundamental laws of nature and has important implications for fields such as cosmology, astrophysics, and particle technology.