NNLO QCD corrections to top-quark pair production in association with a jet

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• Colomba Brancaccio (Turin U.)
• Friday 06 February 2026, 16:00-17:00
• MR19 (Potter Room, Pavilion B), CMS.

If you have a question about this talk, please contact Terry Generet.

The production of a top–quark pair in association with a jet is a key process for precision studies of the Standard Model and an important background in searches for new physics. Achieving reliable predictions requires full control over two-loop amplitudes depending on six kinematic invariants. In this talk, I will present NNLO predictions for the cross section and differential distributions of this process, obtained using newly computed leading-colour two-loop matrix elements. I will discuss the derivation of the double-virtual contributions and the analytic derivation of the finite remainder in terms of a set of special functions, evaluated through direct numerical integration of their differential equations.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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