Speaker
Description
Generalized Partons Distributions (GPDs) give a 3-dimensional description of the structure of the nucleon, and give insights into the origin of its spin and the forces at play within it. The study of the Deeply Virtual Compton Scattering (DVCS) reaction with both polarized protons and neutrons is important for the complete extraction of GPDs and of their flavor dependency. Part of the Run Group C (RGC) experimental program with the CLAS12 detector at Jefferson Lab aims to measure, for the first time, the DVCS target-spin and double-spin asymmetries on protons and neutrons in deuterium. RGC relies on longitudinally polarized hydrogenated- and deuterated-ammonia targets. An overview of the experiment and of the analysis for DVCS on protons and neutrons in deuterium will be presented, highlighting the challenges of working with a polarized nuclear target, the techniques that have been developed to address them, and preliminary results for the asymmetries.
