Epps16 ⇓ first nuclear pdfs to include lhc data

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http://hdl.handle.net/10138/299484

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Eskola , K J , Paakkinen , P , Paukkunen , H T & Salgado , C A 2017 , ' Epps16 ⇓ first nuclear pdfs to include lhc data ' , PoS Proceedings of Science , vol. 314 , 180 . < https://pos.sissa.it/314/ >

Title: Epps16 ⇓ first nuclear pdfs to include lhc data
Author: Eskola, K.J.; Paakkinen, Petja; Paukkunen, Hannu Tuomas; Salgado, C.A.
Contributor: University of Helsinki, University Management
University of Helsinki, University of Jyväskylä
Date: 2017
Language: eng
Number of pages: 5
Belongs to series: PoS Proceedings of Science
ISSN: 1824-8039
URI: http://hdl.handle.net/10138/299484
Abstract: We present results of our recent EPPS16 global analysis of NLO nuclear parton distribution functions (nPDFs). For the first time, dijet and heavy gauge boson production data from LHC proton–lead collisions have been included in a global fit. Especially, the CMS dijets play an important role in constraining the nuclear effects in gluon distributions. With the inclusion of also neutrino–nucleus deeply-inelastic scattering and pion–nucleus Drell–Yan data and a proper treatment of isospin-corrected data, we were able to free the flavor dependence of the valence and sea quark nuclear modifications for the first time. This gives us less biased, yet larger, flavor by flavor uncertainty estimates. The EPPS16 analysis indicates no tension between the data sets used, which supports the validity of collinear factorization and universal nPDFs for nuclear hard-collision processes in the kinematical range studied. © Copyright owned by the author(s).
Subject: Bosons
Distribution functions
Inelastic scattering, Deeply inelastic scatterings
Global analysis
Lead collisions
Nuclear effects
Nuclear modification
Nuclear parton distribution functions
Production data
Uncertainty estimates, Uncertainty analysis
114 Physical sciences
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