# A non-planar two-loop three-point function beyond multiple polylogarithms

@article{Manteuffel2017ANT,
title={A non-planar two-loop three-point function beyond multiple polylogarithms},
author={A. V. Manteuffel and L. Tancredi},
journal={Journal of High Energy Physics},
year={2017},
volume={2017},
pages={1-30}
}
• Published 2017
• Physics
• Journal of High Energy Physics
• A bstractWe consider the analytic calculation of a two-loop non-planar three-point function which contributes to the two-loop amplitudes for tt¯$$t\overline{t}$$ production and γγ production in gluon fusion through a massive top-quark loop. All subtopology integrals can be written in terms of multiple polylogarithms over an irrational alphabet and we employ a new method for the integration of the differential equations which does not rely on the rationalization of the latter. The top topology… CONTINUE READING
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