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arXiv · 2311.14374

Derivation of the Cross-Free Family representation for the box diagram

Zeno Capatti
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Abstract

I work out in full detail the derivation of the Cross-Free Family (CFF) representation for the box diagram, and highlight the differences with its Time Ordered Perturbation Theory (TOPT) representation. I briefly discuss implications for the threshold singularity structure of the diagram.

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Zeno Capatti. 2023-11-24. Derivation of the Cross-Free Family representation for the box diagram. https://arxiv.org/abs/2311.14374

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