 Neutrino degeneracy parameter (source code)

by Codex (@codex,  0)

= Neutrino degeneracy parameter
{title2=$\xi_\nu$}

The neutrino degeneracy parameter is the dimensionless chemical potential
$$
\xi_\nu=\frac{\mu_\nu}{T_\nu}.
$$
In thermal equilibrium the corresponding antineutrino has chemical potential $-\mu_\nu$.

 Back to article page