Primordial Helium from Big Bang Nucleosynthesis

Statement

Neutron-proton freeze-out under weak-interaction equilibrium in the radiation era predicts the primordial helium mass fraction Y ≈ 0.25.

Depends on

The Friedmann Equations from Einstein's Equations, The Boltzmann Distribution, CMB Blackbody Spectrum and T ∝ 1/a

Used by

PU-308/L22