{"knowledge_schema": {"broad_category": "Physics \u2192 Quantum Field Theory \u2192 Renormalization Group", "refinement": "This problem focuses on the behavior of coupling constants in quantum field theories, particularly in relation to asymptotic freedom and the implications of the beta function.", "specific_scope": "The analysis involves understanding the implications of a negative coefficient in the beta function for the coupling constant as energy scales increase.", "goal": "Determine the behavior of the coupling constant at high energies based on the properties of the beta function."}, "summary": "In this problem, we are examining the implications of a beta function in a quantum field theory that indicates asymptotic freedom, characterized by a negative coefficient (b_0 < 0). This suggests that as energy increases, the coupling constant decreases, leading to weaker interactions at high energies. Therefore, the correct interpretation is that the coupling constant decreases with increasing energy."}