{"knowledge_schema": {"broad_category": "Physics \u2192 Particle Physics \u2192 Beyond Standard Model", "refinement": "This problem involves calculating the mass of a pseudo-Goldstone boson in an extended Standard Model framework, considering radiative corrections from various particles.", "specific_scope": "The focus is on the mass correction of the pseudo-Goldstone boson H_2 due to contributions from other particles in the model, including scalars and fermions.", "goal": "Determine the correct expression for the mass of the pseudo-Goldstone boson H_2 through radiative corrections based on the provided Lagrangian."}, "summary": "In this problem, we are tasked with finding the mass of a pseudo-Goldstone boson H_2 in an extended Standard Model using radiative corrections. The mass is expressed as a function of various parameters and particle masses, and we need to identify the correct formula from the given options. The correct expression accounts for contributions from different particles, including scalars and fermions, and is crucial for understanding the dynamics of the extended model."}