Two-loop master integrals for a planar topology contributing to pp → tt-j
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Documents
- JHEP01(2023)156
Final published version, 834 KB, PDF document
We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association with a jet at hadron colliders. We construct the system of differential equations for all the master integrals in a canonical form where the analytic form is reconstructed from numerical evaluations over finite fields. We find that the system can be represented as a sum of d-logarithmic forms using an alphabet of 71 letters. Using high precision boundary values obtained via the auxiliary mass flow method, a numerical solution to the master integrals is provided using generalised power series expansions.
Original language | English |
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Article number | 156 |
Journal | Journal of High Energy Physics |
Volume | 2023 |
Issue number | 1 |
Number of pages | 35 |
ISSN | 1029-8479 |
DOIs | |
Publication status | Published - 26 Jan 2023 |
- Higher-Order Perturbative Calculations, Top Quark, DIFFERENTIAL-EQUATIONS, EPSILON, PARTS, TOOL
Research areas
ID: 342567289