Elementary particle physics is a branch of physics that explores the fundamental constituents of matter and their interactions at the smallest scales. It focuses on understanding the properties, behavior, and interactions of particles that are considered fundamental and indivisible, known as elementary particles. These elementary particles are categorized into two main groups: fermions and bosons. Fermions, such as quarks and leptons, constitute matter particles, while bosons, like photons and W and Z bosons, mediate fundamental forces. The Standard Model of particle physics, a fundamental theory in this field, describes the interactions among these particles through three of the four fundamental forces: electromagnetic, weak, and strong forces. Gravity, although well understood at macroscopic scales, has not yet been successfully incorporated into the Standard Model. Research in elementary particle physics involves high-energy particle accelerators, such as the Large Hadron Collider (LHC), and particle detectors to study the properties of particles and unveil new phenomena.