B Factories are specialized facilities designed to produce and process B mesons, which are subatomic particles containing a bottom quark. These factories use high-energy particle collisions to create B mesons, allowing scientists to study their properties and behavior. Understanding B mesons is crucial for exploring the differences between matter and antimatter. The research conducted at B Factories contributes to the field of particle physics and helps answer fundamental questions about the universe. Notable examples of B Factories include the KEK High Energy Accelerator Research Organization in Japan and the SLAC National Accelerator Laboratory in the United States, both of which have made significant contributions to this area of study.