We present the first measurement of e p -> e p gamma cross section in the deep virtual Compton scattering (DVCS) regime and the valence quark region (xb=0.36). From JLab E00-110, we extract the imaginary part of the Bethe-Heitler (BH)-DVCS interference terms, to order twist-3 for Q2=1.5, 1.9 and 2.3 GeV2, and the real part of the BH-DVCS interference terms at Q2=2.3 GeV2. We present the first model-independent measurement of linear combinations of generalized parton distributions (GPDs) and GPD integrals up to twist-2 approximation. The validity of this approximation is strongly supported by the absence of Q2-variation of the extracted terms - thereby constraining the size of higher twist contributions to our observables. |
