Speaker
Sebastian Kuhn
(Jefferson Lab)
Description
Understanding nucleon structure in the valence region, where one quark carries a large fraction x of the nucleon momentum, is a fundamental goal in hadronic physics. Many models and theoretical predictions exist for the behavior of the ratio d(x)/u(x) of up over down quark densities, and for the intrinsic polarization of up and down quarks inside a polarized nucleon as x approaches x=1. Exploring this regime is one of the central experimental goals of the energy-upgraded CEBAF accelerator at Jefferson Lab. I will present an overview of this experimental program, with an emphasis on recent measurements with the CLAS12 spectrometer in Hall B of Jefferson Lab.
Author
Sebastian Kuhn
(Jefferson Lab)
