{"knowledge_schema": {"broad_category": "Particle Physics \u2192 Decay Processes \u2192 Boson Decays", "refinement": "This problem involves analyzing the decay channels of a boson based on its interactions with fermions and the conservation laws governing particle decays.", "specific_scope": "The focus is on the kinematically allowed decay modes of a boson with a mass of 6 GeV, specifically the boson X, and its interactions with various fermion-antifermion pairs.", "goal": "Identify the possible decay channels for the boson X at the lowest order based on its mass and interaction with fermions."}, "summary": "In this problem, we analyze the decay processes of a boson X with a mass of 6 GeV. The interaction of the boson with fermions allows for various decay channels, and we need to determine which of these channels are kinematically allowed. The allowed decays include pairs of quarks (like cc\u0305, ss\u0305, uu\u0305, dd\u0305) and lepton pairs (like \u03c4^+\u03c4^-, \u03bc^+\u03bc^-, e^+e^-). The correct answer identifies the decay modes that can occur based on the mass of the boson and the conservation laws in particle physics."}