pub fn complex_breakup_momentum(
m0: Float,
m1: Float,
m2: Float,
) -> Complex<Float>Expand description
Computes the breakup momentum (often denoted $q$) for a particle with mass $m_0$ decaying
into two particles with masses $m_1$ and $m_2$: $\frac{m_0 \rho(m_0^2, m_1, m_2)}{2}$.