Derivation of the Cross-Free Family representation for the box diagram
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Open Access
- 28 November 2023
- conference paper
- Published by Sissa Medialab Srl
- Vol. 432, 027
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.Keywords
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