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arxiv: 2312.16293 · v2 · pith:BMWCNSUXnew · submitted 2023-12-26 · ✦ hep-ph · nucl-ex

Modification of Quark-Gluon Distributions in Nuclei by Correlated Nucleon Pairs

nCTEQ Collaboration: A.W. Denniston , T. Jezo , A. Kusina , N. Derakhshanian , P. Duwentaster , O. Hen , C. Keppel , M. Klasen
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K. Kovarik J.G. Morfin K.F. Muzakka F.I. Olness E. Piasetzky P. Risse R. Ruiz I. Schienbein J.Y. Yu
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classification ✦ hep-ph nucl-ex
keywords correlatedpairsanalysisdistributionsmodelnuclearnucleonnucleons
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We extend the QCD Parton Model analysis using a factorized nuclear structure model incorporating individual nucleons and pairs of correlated nucleons. Our analysis of high-energy data from lepton Deep-Inelastic Scattering, Drell-Yan and W/Z production simultaneously extracts the universal effective distribution of quarks and gluons inside correlated nucleon pairs, and their nucleus-specific fractions. Such successful extraction of these universal distributions marks a significant advance in our understanding of nuclear structure properties connecting nucleon- and parton-level quantities.

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