Constraints for nuclear PDFs from the LHCb D-meson data

Abstract
We quantify the impact of LHCb D-meson measurements at s√=5TeV on the EPPS16 and nCTEQ15 nuclear PDFs. In our study, the theoretical description of D-meson production is based on the recently developed SACOT-mT variant of the general-mass variable-flavour-number formalism, and the impact on PDFs is estimated via reweighting methods. We pay special attention on the theoretical uncertainties known to us, and are led to exclude the pT<3GeV region from our main analysis. The LHCb data can be accommodated well within EPPS16 and nCTEQ15, and the data provide stringent constraints on the gluons in the shadowing/antishadowing regions. No evidence of non-linear effects beyond standard DGLAP evolution is found even if the full kinematic region down to zero pT is considered.
Main Authors
Format
Conferences Conference paper
Published
2019
Series
Subjects
Publication in research information system
Publisher
Sissa
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201912275487Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
1824-8039
DOI
https://doi.org/10.22323/1.352.0026
Conference
International Workshop on Deep-Inelastic Scattering and Related Subjects
Language
English
Published in
POS Proceedings of Science
Is part of publication
DIS 2019 : Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects
Citation
  • Paukkunen, H., Eskola, K., Helenius, I., & Paakkinen, P. (2019). Constraints for nuclear PDFs from the LHCb D-meson data. In DIS 2019 : Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 026). Sissa. POS Proceedings of Science, 352. https://doi.org/10.22323/1.352.0026
License
CC BY-NC-ND 4.0Open Access
Funder(s)
Research Council of Finland
Research Council of Finland
Funding program(s)
Academy Research Fellow, AoF
Academy Project, AoF
Akatemiatutkija, SA
Akatemiahanke, SA
Research Council of Finland
Additional information about funding
We wish to acknowledge Academy of Finland Projects 297058 & 308301, the Magnus Ehrnrooth Foundation, the Carl Zeiss Foundation, and the state of Baden-Württemberg through bwHPC, for support.
Copyright© The Authors, 2019

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