Leptonic final states refer to the outcome of high-energy particle collisions where the final-state particles involved are leptons, such as electrons, muons, or neutrinos. Leptons are fundamental particles that do not experience strong interactions, making them relatively easy to detect and study in particle physics experiments. Research in leptonic final states often focuses on studying the properties and interactions of leptons, as well as understanding the underlying physics processes that produce these final states. This research can provide valuable insights into the fundamental forces and particles that make up the universe, as well as help test and refine our current understanding of particle physics theories, such as the Standard Model. Leptonic final states are important in a wide range of experiments, such as those conducted at particle accelerators like the Large Hadron Collider (LHC) at CERN. By analyzing the particles produced in these collisions and their final states, researchers can probe the mysteries of nature at the smallest scales and reveal new insights into the fundamental structure of matter and the forces that govern it.