The EPPS16 nuclear PDFs

K.J. Eskola, Petja Paakkinen, H. Paukkunen, Carlos A. Salgado

Research output: Contribution to journalConference articleScientificpeer-review

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. © 2017 Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
Original languageEnglish
Article number197
JournalPoS Proceedings of Science
Volume297
Number of pages4
ISSN1824-8039
Publication statusPublished - 2017
MoE publication typeA4 Article in conference proceedings
EventInternational Workshop on Deep-Inelastic Scattering and Related Subjects - Birmingham, United Kingdom
Duration: 3 Apr 20177 Apr 2017
Conference number: 25
https://indico.cern.ch/event/568360/

Fields of Science

  • Elementary particles
  • High energy physics
  • Lead, Deeply inelastic scatterings
  • Drell-Yan process
  • Heavy nucleus
  • Heavy-quark
  • High-energy collisions
  • Nuclear modification
  • Sea quarks, Inelastic scattering
  • 114 Physical sciences

Cite this

Eskola, K. J., Paakkinen, P., Paukkunen, H., & Salgado, C. A. (2017). The EPPS16 nuclear PDFs. PoS Proceedings of Science, 297, [197].