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arXiv · hep-ph/9606244

Small-threshold behaviour of two-loop self-energy diagrams: some special cases

F. A. Berends·A. I. Davydychev·V. A. Smirnov
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Abstract

An algorithm to construct analytic approximations to two-loop diagrams describing their behaviour at small non-zero thresholds is discussed. For some special cases (involving two different-scale mass parameters), several terms of the expansion are obtained.

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F. A. Berends, A. I. Davydychev, V. A. Smirnov. 1996-06-05. Small-threshold behaviour of two-loop self-energy diagrams: some special cases. https://doi.org/10.1016/s0920-5632(96)90040-7

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