The EPPS16 nuclear PDFs

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Eskola , K J , Paakkinen , P , Paukkunen , H & Salgado , C A 2017 , ' The EPPS16 nuclear PDFs ' , PoS Proceedings of Science , vol. 297 , 197 . < >

Title: The EPPS16 nuclear PDFs
Author: Eskola, K.J.; Paakkinen, Petja; Paukkunen, H.; Salgado, Carlos A.
Contributor: University of Helsinki, University Management
University of Helsinki, Helsinki Institute of Physics
Date: 2017
Language: eng
Number of pages: 4
Belongs to series: PoS Proceedings of Science
ISSN: 1824-8039
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).
Subject: Elementary particles
High energy physics
Lead, Deeply inelastic scatterings
Drell-Yan process
Heavy nucleus
High-energy collisions
Nuclear modification
Sea quarks, Inelastic scattering
114 Physical sciences

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