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arXiv · 2203.06207

Probing heavy-flavor parton distribution functions at hadron colliders

Keping Xie·Marco Guzzi·Pavel Nadolsky
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Abstract

Precision measurements of heavy-flavor hadroproduction at the Large Hadron Collider (LHC) have the ability to probe heavy-flavor parton distribution functions (PDFs) in the proton. Sensitivity of inclusive $B^\pm$ meson production cross section measurements at LHCb 13 TeV to the bottom-quark PDF is illustrated by using theory predictions obtained with a the S-ACOT-MPS general mass variable flavor number (GMVFN) scheme within the QCD factorization formula. This approach can easily be extended to other heavy-flavor production processes, such as $Z$ boson production in association with a bottom- or a charm-jet. The inclusion of such measurements will represent an important improvement for future global QCD analyses that aim at reducing uncertainties of heavy-flavor PDFs, provided that a consistent general mass treatment in $pp$ collisions is used. This work is related to the activities of the Snowmass topic groups EF03, and EF06.

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Keping Xie, Marco Guzzi, Pavel Nadolsky. 2022-03-11. Probing heavy-flavor parton distribution functions at hadron colliders. https://arxiv.org/abs/2203.06207

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