Someone argues: "SNO's charged-current measurement of the solar B neutrino flux was…
PHYSICS · Subjective · Fermi University Physics · Particle Physics & Quantum Fields · Astrophysics & Cosmology · Stellar structure, energy generation and evolution
Stars from the Inside, Ch The Sun as a test: calibration, sound, neutrinos and a magnetised atmosphere
Problem
Someone argues: "SNO's charged-current measurement of the solar 8B neutrino flux was about a third of the standard solar model's predicted value. The charged-current reaction νe+d→p+p+e− only fires for electron neutrinos, and electron neutrinos are exactly what the pp chain produces in the core. A rate that is a third of the prediction therefore means the core is producing a third as many 8B-producing reactions as the standard model assumes, which points to a core temperature a few per cent cooler than 1.57×107K, since the 8B production rate depends on a very high power of Tc. This is a clean solution: no new particle physics is needed, only a small adjustment to the model's central temperature." Identify the error in this argument and state the two pieces of observational evidence that rule it out.