| In the framework of Generalised Parton Distributions, we study the helicity-dependent and independent
cross sections measured in Hall A and the beam spin asymmetries measured in Hall B
at Je erson Laboratory. We perform a global t of these data and ts on each kinematic bin. We
extract the real and imaginary parts of the Compton Form Factor H under the main hypothesis of
dominance of the Generalised Parton Distribution H and twist 2 accuracy. We discuss our results
and compare to previous extractions as well as to the VGG model. We pay extra attention to the
estimation of errors on the extraction of H. |
