{"knowledge_schema": {"broad_category": "Physics \u2192 Particle Physics \u2192 Decay Processes", "refinement": "This problem involves understanding the decay of a scalar particle into fermion-antifermion pairs and the conservation of energy and mass in particle interactions.", "specific_scope": "The focus is on the decay process of a scalar boson (\u03d5) with a known mass into a pair of fermions (f and f\u0305), determining the maximum mass of the fermion that can be produced in this decay.", "goal": "Calculate the maximum mass of the fermion that can be produced in the decay process while conserving energy."}, "summary": "This problem pertains to particle physics, specifically the decay of a scalar boson into fermion pairs. The scalar boson has a mass of 8 GeV, and the task is to determine the maximum mass of the fermion that can be produced in the decay process \u03d5\u2192 ff\u0305. By applying conservation of energy, the maximum mass of each fermion can be calculated as half of the boson's mass, leading to a maximum fermion mass of 4 GeV."}