{"knowledge_schema": {"broad_category": "Particle Physics \u2192 Decay Processes \u2192 Kinematic Constraints", "refinement": "This problem involves analyzing the decay channels of a bosonic particle based on its mass and the masses of potential decay products.", "specific_scope": "The focus is on determining which decay processes are kinematically allowed for a boson with a mass of 6 GeV.", "goal": "Identify the decay modes of the boson Y that can occur at the lowest order based on the mass constraints of the decay products."}, "summary": "In this problem, we are tasked with identifying the kinematically possible decay channels for a boson Y with a mass of 6 GeV. The decay channels must involve final states whose total mass does not exceed the mass of the boson. The allowed decays include lighter particles such as quark-antiquark pairs (c\u0305c, s\u0305s, u\u0305u, d\u0305d) and lepton pairs (\u03c4\u207a\u03c4\u207b, \u03bc\u207a\u03bc\u207b, e\u207ae\u207b), as they all have masses less than 6 GeV. Other options, such as t\u0305t or W\u207aW\u207b, are not allowed due to their higher mass requirements."}