Evidence for Modified Quark-Gluon Distributions in Nuclei by Correlated Nucleon Pairs

Abstract:

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.

nCTEQ Collaboration: A.W.Denniston, T. Jezo, A. Kusina, N. Derakhshanian, P. Duwentaster,
O. Hen, C. Keppel, M. Klasen, K. Kovarik, J.G. Morfin, K.F. Muzakka, F.I. Olness, E.
Piasetzky, P. Risse, R. Ruiz, I. Schienbein, J.Y. Yu, „Evidence for Modified Quark-Gluon Distributions
in Nuclei by Correlated Nucleon Pairs“, 26. Dez. 2023, arXiv:2312.16293 (2023).

https://arxiv.org/abs/2312.16293

Related to Project C05