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arXiv · 2302.01645

B-hadron production at the LHC from bottom-quark pair production at NNLO+PS

Javier Mazzitelli·Alessandro Ratti·Marius Wiesemann·Giulia Zanderighi
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Abstract

The production of B hadrons is among the most abundant fundamental QCD processes measured at the LHC. We present for the first time predictions for this process accurate to next-to-next-to-leading order in QCD perturbation theory by simulating bottom-quark pair production at this accuracy matched to parton showers. Our novel results are in good agreement with experimental data for the production of different types of B hadrons from ATLAS, CMS and LHCb at 7 TeV and/or 13 TeV, including various fiducial cross sections as well as single- and double-differential distributions, and 13 TeV/7 TeV cross-section ratios.

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Javier Mazzitelli, Alessandro Ratti, Marius Wiesemann, Giulia Zanderighi. 2023-02-03. B-hadron production at the LHC from bottom-quark pair production at NNLO+PS. https://doi.org/10.1016/j.physletb.2023.137991

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