Modification of quark and gluon distributions in nuclei by correlated nucleon pairs

by Michael Klasen

Monday 27 Jan 2025, 14:30 → 16:30 Europe/Zurich

4/2-037 - TH meeting room (CERN)

Nuclear structure studies show that short-lived excitations, caused by strongly interacting, short-range correlated (SRC) nucleon pairs, are significant. While the abundance of SRC pairs differs among nuclei, they are dominanated by proton-neutron pairs and have universal properties. In our recent nCTEQ analysis of DIS, DY and W/Z-boson production data, we found that the SRC fractions determined at much higher energy and resolution coincide with those determined in recent low-energy nuclear structure measurements and simulations, and we determined the universal properties of the SRC structure function. In this talk, we first review recent developments in nuclear structure theory and experiment and the theoretical framework of nuclear parton distribution function (PDF) analyses, before we present the details and results of our nCTEQ SRC analysis.

klasen.pdf