DVCS with CLAS

摘要

Generalized parton distributions provide a unifying framework for the interpretation of exclusive reactions at high Q~2. The most promising reaction for the investigation of these distributions is the hard production of photons using Deeply Virtual Compton Scattering (DVCS). This reaction can be accessed experimentally by determining the production asymmetry using polarized electrons on a proton target. Pioneering experiments with CLAS and HERMES have produced the first measurements of this asymmetry. We will review the current experimental program to study DVCS at Jefferson Lab. Recent high statistics data taken with CLAS at 5.75 GeV allows us to determine this asymmetry at low -t in the valence region (x_B=0.1-0.5) up to a Q~2 of 4 GeV~2/c~2.