Top-quark pole mass extraction at NNLO accuracy
S. Alekhin, M.V. Garzelli, J. Mazzitelli, S.-O. Moch, O. Zenaiev
TL;DR
This paper presents a next-to-next-to-leading order (NNLO) quantum chromodynamics (QCD) analysis to extract the top-quark pole mass from experimental cross section data, achieving consistent results with current world averages.
Contribution
The study provides a precise NNLO QCD framework for top-quark mass extraction using diverse PDF and coupling constant inputs, improving accuracy over previous methods.
Findings
Top-quark mass values are consistent across different PDF sets.
Results align with the PDG 2024 top-quark mass value.
Demonstrates the effectiveness of NNLO QCD in top-quark mass determination.
Abstract
We describe our recent NNLO QCD extraction of the top-quark pole mass from fits to experimental data on total inclusive and normalized (multi)-differential cross sections for hadroproduction, using as input various modern PDF + sets. We find top-quark mass values compatible among each other and with the PDG 2024 preferred value.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Superconducting Materials and Applications · Particle Accelerators and Free-Electron Lasers