Speaker
Description
Deeply virtual Compton scattering (DVCS) is a crucial process for probing generalized parton distributions (GPDs), providing insight into the internal quark-gluon structure of nucleons. In this process, a virtual photon is absorbed by a quark inside the nucleon which in turn re-emits a real photon. In particular, the DVCS off the neutron (n-DVCS) is sensitive to the GPD E, the least constrained GPD, necessary to determine the quark angular momentum via Ji's sum rule. When combined with the proton DVCS results, n-DVCS also allows a flavor decomposition of GPDs. The presentation will describe the recent n-DVCS experiment in Hall C (E12-22-006) and will present the different equipment used during this experiment. It will focus on the neutral particle spectrometer (NPS), where the real photons from the DVCS reaction are detected, and its preliminary performance. It will also discuss some preliminary analysis steps and the experimental method used to identify n-DVCS events.
