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Causal Construction of the Massless Vertex Diagram |
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| Authors: | Andreas Aste |
| Institution: | (1) Department of Physics and Astronomy, Theory Division, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland |
| Abstract: | The massless one-loop vertex diagram is constructed by exploiting the causal structure of the diagram in configuration space, which can be translated directly into dispersive relations in momentum space. |
| Keywords: | 81T05 81T15 81T18 |
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