The EPPS16 nuclear PDFs
Abstract
We report on EPPS16 - the first analysis of NLO nuclear PDFs where LHC p-Pb data (Z, W, dijets) have been directly used as a constraint. In comparison to our previous fit EPS09, also data from neutrino-nucleus deeply-inelastic scattering and pion-nucleus Drell-Yan process are now included. Much of the theory framework has also been updated from EPS09, including a consistent treatment of heavy quarks in deeply-inelastic scattering. However, the most notable change is that we no longer assume flavour-blind nuclear modifications for valence and sea quarks. This significantly reduces the theoretical bias. All the analysed data are well reproduced and the analysis thereby supports the validity of collinear factorization in high-energy collisions involving heavy nuclei. However, flavour by flavour, the uncertainties are still rather large.
Main Authors
Format
Conferences
Conference paper
Published
2017
Series
Subjects
Publication in research information system
Publisher
Sissa
Original source
https://pos.sissa.it/297/197/pdf
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201712074516Use this for linking
Review status
Peer reviewed
ISSN
1824-8039
Conference
International Workshop on Deep-Inelastic Scattering and Related Subjects
Language
English
Published in
PoS : Proceedings of Science
Is part of publication
DIS 2017 : Proceedings of the 25th International Workshop on Deep-Inelastic Scattering and Related Subjects
Citation
- Eskola, K., Paakkinen, P., Paukkunen, H., & Salgado, C. A. (2017). The EPPS16 nuclear PDFs. In DIS 2017 : Proceedings of the 25th International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 197). Sissa. PoS : Proceedings of Science, DIS2017. https://pos.sissa.it/297/197/pdf
License
Funder(s)
Research Council of Finland
Funding program(s)
Akatemiahanke, SA
Academy Project, AoF
Additional information about funding
We have received funding from the Academy of Finland, Project 297058 of K.J.E; the European Research Council grant HotLHC ERC-2011-StG-279579 ; Ministerio de Ciencia e Innovación of Spain and FEDER, project FPA2014-58293-C2-1-P; Xunta de Galicia (Conselleria de Educa-cion) - H.P. and C.A.S are part of the Strategic Unit AGRUP2015/11. The financial support from the Magnus Ehrnrooth Foundation is acknowledged by P.P.
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Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).