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arXiv · hep-ph/0508238

Calculating four-loop tadpoles with one non-zero mass

Bernd A. Kniehl·Anatoly V. Kotikov
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Abstract

An efficient method to calculate tadpole diagrams is proposed. Its capability is demonstrated by analytically evaluating two four-loop tadpole diagrams of current interest in the literature, including their $O(ε)$ terms in $D=4-2ε$ space-time dimensions.

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Bernd A. Kniehl, Anatoly V. Kotikov. 2006-07-18. Calculating four-loop tadpoles with one non-zero mass. https://doi.org/10.1016/j.physletb.2006.04.057

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