# Q&A_QEC: Rotational Cross section Data

Q: How rotational cross section data is calculated in QEC and where can I find the results?

A: QEC plots the summed cross-sections of all transitions calculated in the PolyDCS module, but not the cross-sections for the individual processes. You can find the detailed output in the outer/polydcs subfolder of the project directory. The filenames reflect the energy of the scattering electrons. Each file contains the differential cross section and state-to-state transition cross sections for each individual process as a function of the angle for this energy, as well as the integrated and momentum transfer cross section for this energy.

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