Abstract
We apply the SACOT-mT general-mass variable flavour number scheme (GM-VFNS) to the inclusive B-meson production in hadronic collisions at next-to-leading order in perturbative Quantum Chromodynamics. In the GM-VFNS approach one matches the fixed-order heavy-quark production cross sections, accurate at low transverse momentum (pT), with the zero-mass cross sections, accurate at high pT. The physics idea of the SACOT-mT scheme is to do this by accounting for the finite momentum transfer required to create a heavy quark-antiquark pair throughout the calculation. We compare our results with the latest LHC data from proton-proton and proton-lead collisions finding a very good agreement within the estimated theoretical uncertainties. We discuss also scheme-related differences and their impact on the scale uncertainties.
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Acknowledgments
Our work has been supported by the Academy of Finland, projects 308301 and 331545, and was funded as a part of the Center of Excellence in Quark Matter of the Academy of Finland, project 346326. The reported work is associated with the European Research Council project ERC-2018-ADG-835105 YoctoLHC. The computing resources have been brought to us by the Finnish IT Center for Science (CSC), under the project jyy2580.
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Helenius, I., Paukkunen, H. B-meson hadroproduction in the SACOT-mT scheme. J. High Energ. Phys. 2023, 54 (2023). https://doi.org/10.1007/JHEP07(2023)054
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DOI: https://doi.org/10.1007/JHEP07(2023)054