Volume 512 - XXXII International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2025) - WG4: QCD with Heavy Flavors and Hadronic Final States
Progress on NNLO+PS predictions for top-quark pair production and decay
C. Signorile-Signorile*, C. Biello, J. Mazzitelli, M. Wiesemann and G. Zanderighi
*: corresponding author
Full text: pdf
Pre-published on: December 15, 2025
Published on: January 28, 2026
Abstract
In this proceeding we report on recent progress toward achieving NNLO+PS predictions for off-shell top-quark production and decay in the fully-leptonic channel within the
\(\text{MiNNLO}_{\rm PS}\) framework. We discuss both the computational challenges involved in parton-shower-matched simulations of \( e^+ \nu_e b \mu^- \bar{\nu}_\mu \bar{b} \) production and the conceptual obstacles posed by the lack of the two-loop off-shell amplitude. We present one-loop studies aimed at assessing the validity of possible approximations for the virtual contributions of the dominant double-resonant contribution.
DOI: https://doi.org/10.22323/1.512.0086
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