Name: Timur Date: 04/24/20-07:03:06 PM Z
Dear FeynCalc author. I am trying to calculate single and double compton scattering cross section for specified polarization of ingoing and outgoing photons. I know how to perform summation over polzariations with the use of DoPolarizationSums and FermionSpinSum commands. But how I can calculate squared amplitude for specified fermion spin and photon polarizations?