TwoBodyAlpha

class TwoBodyAlpha : public feasst::ModelTwoBody

The two-body alpha model is defined as

\(U = s\epsilon \left(\frac{\sigma}{r}\right)^\alpha\)

where \(s\) is the prefactor and \(\alpha\) is the power, both of which are given as class-specific parameters. Note that \(s\) is required for negative values because \(\epsilon\) cannot be negative due to the standard mixing rules.