Calculating Helicity Amplitudes with FeynCalc

• $e^- e^+ \rightarrow e^- e^+$ (Bhabha scattering)

  The program that calculates the helicity amplitudes is SpinorProductse-EeE.m.

• $e^- e^+ \rightarrow \gamma \gamma$ in QED

  The program that calculates the helicity amplitudes is SpinorProducts-eEGG.nb.