Multilepton final states refer to the observation of events in high-energy physics experiments where multiple charged leptons (such as electrons or muons) are produced in the final state. These final states are of interest to researchers because they can provide valuable information about the underlying physics processes at play in particle collisions. Multilepton final states are often studied in the context of searching for new particles or interactions beyond the Standard Model of particle physics. The presence of multiple leptons can indicate the presence of heavy particles that decay into lepton pairs, or the production of multiple particles in a cascade decay process. Researchers analyze multilepton final states by studying the momentum, energy, and charge of the leptons produced in a collision, as well as any additional particles that may be present in the event. By studying these properties, researchers can infer information about the nature of the particles and interactions involved in the collision. Overall, the study of multilepton final states plays a crucial role in advancing our understanding of fundamental particles and forces, and in searching for new physics beyond our current understanding.