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arXiv · 1912.13065

Analytic Properties of Triangle Feynman Diagrams in Quantum Field Theory

Dmitri Melikhov
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Abstract

We discuss dispersion representations for the triangle diagram $F(p_1^2,p_2^2,q^2)$, the single dispersion representation in $q^2$ and the double dispersion representation in $p_1^2$ and $p_2^2$, with special emphasis on the appearance of the anomalous singularities and the anomalous cuts in these representations.

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Dmitri Melikhov. 2019-12-30. Analytic Properties of Triangle Feynman Diagrams in Quantum Field Theory. https://doi.org/10.3390/particles3010009

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