{"knowledge_schema": {"broad_category": "Particle Physics \u2192 Decay Processes \u2192 Boson Decays", "refinement": "This problem involves understanding the decay channels of a boson based on its mass and the types of particles it can decay into.", "specific_scope": "The focus is on the boson Y with a mass of 8 GeV and identifying the kinematically allowed decay modes at the lowest order.", "goal": "Determine which decay channels are allowed for the boson Y based on its mass and the properties of the particles involved."}, "summary": "In this problem, we analyze the decay processes of a boson Y with a mass of 8 GeV. The task is to identify the kinematically allowed decays at the lowest order. Given the mass of the boson, it can decay into pairs of lighter particles, such as quark-antiquark pairs (cc\u0305, ss\u0305, uu\u0305, dd\u0305) and lepton pairs (\u03c4^+\u03c4^-, \u03bc^+\u03bc^-, e^+e^-). The correct answer indicates that Y can decay into a variety of lighter particles, confirming that the decay channels include both quarks and leptons."}