{"knowledge_schema": {"broad_category": "Physics \u2192 Astrophysics \u2192 Solar Neutrinos", "refinement": "This problem specifically examines the effects of stopping a particular branch of nuclear fusion in the Sun on the production of neutrinos, focusing on energy bands of neutrinos.", "specific_scope": "The analysis is limited to the pp-III branch of solar fusion and its contribution to neutrino flux in two specified energy bands (700-800 KeV and 800-900 KeV).", "goal": "Determine the ratio of neutrino flux between the two specified energy bands after the pp-III branch has stopped."}, "summary": "This problem involves understanding the production of solar neutrinos and how stopping a specific fusion process (pp-III) affects the flux of neutrinos in different energy bands. The task is to calculate the ratio of neutrino flux between the 700-800 KeV band and the 800-900 KeV band after the pp-III branch has ceased. Given the nature of neutrino production and energy distributions, the expected ratio of flux between these two bands is likely to be 0.1 (10^-1), as the pp-III branch primarily contributes to the lower energy band."}