0000000000384335

AUTHOR

Marina Walt

0000-0002-4147-9420

showing 3 related works from this author

Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO

2019

We present new sets of nuclear parton distribution functions (nPDFs) at next-to-leading order (NLO) and next-to-next-to-leading order (NNLO). Our analyses are based on deeply inelastic scattering data with charged-lepton and neutrino beams on nuclear targets. In addition, a set of proton baseline PDFs is fitted within the same framework with the same theoretical assumptions. The results of this global QCD analysis are compared to existing nPDF sets and to the fitted cross sections. Also, the uncertainties resulting from the limited constraining power of the included experimental data are presented. The published work is based on an open-source tool, xFitter, which has been modified to be ap…

particle interactionsParticle physicsHEAVY FLAVOR PRODUCTIONProtonPREDICTIONSFOS: Physical sciencesPartonhiukkasfysiikkaInelastic scatteringPROTON114 Physical sciences01 natural sciencesUNCERTAINTIESnucleus-neutrino interactionsCROSS-SECTIONSSet (abstract data type)High Energy Physics - Phenomenology (hep-ph)DEPENDENCEquantum chromodynamics0103 physical sciencesnonperturbative effects in field theory010306 general physicsNuclear Experimentquantum field theoryperturbation theoryDEEP-INELASTIC-SCATTERINGQuantum chromodynamicsPhysics010308 nuclear & particles physics3-LOOP SPLITTING FUNCTIONSnucleon distributionSTRUCTURE-FUNCTION RATIOSDeep inelastic scatteringEVOLUTIONHigh Energy Physics - PhenomenologyDistribution functionQCD in nuclear reactionsnuclear matterHigh Energy Physics::ExperimentNeutrinoydinfysiikka
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NNLO nuclear parton distribution functions with electroweak-boson production data from the LHC

2022

We present new sets of nuclear parton distribution functions (nPDFs) at next-to-leading order and next-to-next-to-leading order in perturbative QCD. Our analyses are based on deeply inelastic scattering data with charged-lepton and neutrino beams on nuclear targets, and experimental data from measurements of $W^{\pm},\,Z$ boson production in p+Pb collisions at the LHC. In addition, a set of proton baseline PDFs is fitted within the same framework and with the same theoretical assumptions. The results of our global QCD analysis are compared to existing nPDF sets and to the previous nPDF set TUJU19 which was based on DIS data only. Our work is performed using an open-source tool, xFitter, and…

High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::PhenomenologyFOS: Physical scienceskvanttiväridynamiikkahiukkasfysiikkaydinfysiikka114 Physical sciences
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A QCD analysis for nuclear PDFs at NNLO

2019

A new QCD analysis for nuclear parton distribution functions (nPDFs) at next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) is presented. The framework of the analysis, including the form of the parameterization as well as the included DIS data sets, are discussed. The results of this QCD analysis are compared to the existing nPDF sets and to the fitted data. The presented framework is based on an open-source tool, xFitter, which has been modified to be applicable also for a nuclear PDF analysis. The required modifications are covered as well. Finally, an outlook for the next developments of the QCD analysis for nuclear PDFs is given.

PhysicsQuantum chromodynamicsParticle physics05 social sciencesHigh Energy Physics::PhenomenologyeducationFOS: Physical sciences020207 software engineeringParton02 engineering and technologyhiukkasfysiikka114 Physical sciencesHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Distribution function0202 electrical engineering electronic engineering information engineering0501 psychology and cognitive sciencesHigh Energy Physics::Experimentydinfysiikka050107 human factors
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