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arXiv · 1705.06862

The $n_f^2$ contributions to fermionic four-loop form factors

Roman N. Lee·Alexander V. Smirnov·Vladimir A. Smirnov·Matthias Steinhauser
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Abstract

We compute the four-loop contributions to the photon quark and Higgs quark form factors involving two closed fermion loops. We present analytical results for all non-planar master integrals of the two non-planar integral families which enter our calculation.

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Roman N. Lee, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser. 2017-05-19. The $n_f^2$ contributions to fermionic four-loop form factors. https://doi.org/10.1103/physrevd.96.014008

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