Vertical integration from the large Hilbert space

@article{Erler2017VerticalIF,
  title={Vertical integration from the large Hilbert space},
  author={Theodore G. Erler and Sebastian Konopka},
  journal={Journal of High Energy Physics},
  year={2017},
  volume={2017},
  pages={1-37}
}
A bstractWe develop an alternative description of the procedure of vertical integration based on the observation that amplitudes can be written in BRST exact form in the large Hilbert space. We relate this approach to the description of vertical integration given by Sen and Witten. 

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