Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 75, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-015-3618-z
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Funding
- Helmholtz Association [HGF-SO-072, VH-HA-101]
- EU-TMR Network Higgstools
- STFC [ST/L000520/1, ST/J000418/1, ST/K00137X/1, ST/G00045X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000418/1, ST/K00137X/1, ST/G00045X/1, ST/L000520/1] Funding Source: researchfish
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The impact of recent measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis in the fixed-flavour number scheme at next-to-leading order. Differential cross sections of charm- and beauty-hadron production measured by LHCb are used together with inclusive and heavy-flavour production cross sections in deep inelastic scattering at HERA. The heavy-flavour data of the LHCb experiment impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions x of the proton momentum, down to x similar to 5x10(-6). This kinematic range is currently not covered by other experimental data in perturbative QCD fits.
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