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RESEARCH PRODUCT
The EPPS16 nuclear PDFs
Carlos A. SalgadoCarlos A. SalgadoCarlos A. SalgadoHannu PaukkunenKari J. EskolaPetja Paakkinensubject
PhysicsQuarkParticle physicsLarge Hadron Collider010308 nuclear & particles physicsScatteringHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyFlavourDrell–Yan processElementary particleDeep inelastic scattering01 natural sciencesFactorization0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-12 | Proceedings of XXV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2017) |