NNLO fits of top-quark mass using total, single-differential and double-differential $t\bar{t}+X$ cross-section data

Abstract

We describe the fits of the top-quark mass value at NNLO using as input the double-differential distributions in rapidity and invariant mass of $t\bar{t}$ pairs obtained by the ATLAS and CMS collaborations from unfolding of their experimental data to the parton level, compared to NNLO theory predictions. We consider different state-of-the-art PDF sets, finding results of the fits compatible among each other within uncertainties. On the other hand, we observe some tension among the fits to different datasets.

Contribution to proceedings of the 42nd International Conference on High Energy Physics (ICHEP 2024), 18-24 July 2024

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