Speaker
Description
This study confronts the Standard Solar Model (SSM) with observed neutrino fluxes (pp, pep, Be7, B8, CNO) by constructing parameterized solar core models (SCMs) with variable helium/metallicity profiles and equilibrium nuclear burning assumptions for pp chains. We find key tension emerges that no SCM simultaneously satisfies all observed neutrino fluxes, notably due to core temperature-driven discrepancies in pep, B8, and CNO neutrinos. Reducing radiative opacity by ~13% or enhancing 14N(p,γ)15O rates by ~26% aligns CNO fluxes with observations (1-sigma). Crucially, SCMs isolate opacity and nuclear rate dependencies, bypassing uncertainties from convection/diffusion physics. Future work will integrate helioseismic constraints to resolve core radius sensitivity challenges in multi-probe analyses.
