Search results for "Production data"

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EPPS16 - First nuclear PDFs to include LHC data

2017

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. …

Uncertainty estimates Uncertainty analysisHigh Energy Physics::LatticeLead collisionsNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesNuclear parton distribution functions114 Physical sciencesHigh Energy Physics - ExperimentHigh Energy Physics - PhenomenologyHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Production dataHigh Energy Physics::ExperimentNuclear modificationNuclear ExperimentNuclear effectsBosonsDistribution functionsGlobal analysisInelastic scattering Deeply inelastic scatterings
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