Nuclear Fermi gas model
= Nuclear Fermi gas model
{title2=$p_{F,i}=\hbar(3\pi^2n_i)^{1/3}$}
A model with separate filled <proton> and <neutron> <momentum> seas in a <nuclear mean field>. Each spin-half species has two <spin> states, so counting momentum-space cells gives $p_{F,i}=\hbar(3\pi^2n_i)^{1/3}$. It describes typical <nucleon> motion and a kinetic contribution to <nuclear symmetry energy>, but binding requires additional interactions.