| Working at twist 2 accuracy and assuming the dominance of the Generalized Parton Distribution H we study the
helicity-dependent and independent cross sections measured in Hall A, the beam spin asymmetries measured in Hall B at
Jefferson Laboratory and beam charge, beam spin and target spin asymmetries measured by Hermes. We extract the real and
imaginary parts of the Compton Form FactorH , the latter being obtained with a 2050 % uncertainty.We pay extra attention
to the estimation of systematic errors on the extraction ofH . We discuss our results and compare to other extractions as well
as to the popular VGG model. |
