Abstract
The associated production of a Higgs boson and a top-quark pair is important for probing the Yukawa coupling of the top quark, and calls for better theoretical modeling. In this paper, we calculate the two-loop infrared divergences in \( t\overline{t}H \) production at hadron colliders. To do that we compute the one-loop amplitudes to higher orders in the dimensional regulator ϵ. Numeric results for the infrared poles are given as a reference at several representative phase-space points. The result in this work serves as a part of the ongoing efforts towards the \( t\overline{t}H \) cross sections at the next-to-next-to-leading order.
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Chen, J., Ma, C., Wang, G. et al. Two-loop infrared singularities in the production of a Higgs boson associated with a top-quark pair. J. High Energ. Phys. 2022, 25 (2022). https://doi.org/10.1007/JHEP04(2022)025
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DOI: https://doi.org/10.1007/JHEP04(2022)025