Scaling tests of the cross section for deeply virtual Compton scattering.

Abstract

We present the first measurements of the e[over -->]p-->epgamma cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region. The Q(2) dependence (from 1.5 to 2.3 GeV(2)) of the helicity-dependent cross section indicates the twist-2 dominance of DVCS, proving that generalized parton distributions (GPDs) are accessible to… (More)

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@article{Camacho2006ScalingTO, title={Scaling tests of the cross section for deeply virtual Compton scattering.}, author={Carlos Camacho and Alexandre Camsonne and Mohamed Omar Mazouz and C. Ferdi and Gagik Gavalian and E V Kuchina and M P Amarian and K. A. Aniol and Matthieu Beaumel and H. B. Benaoum and P. Bertin and M. Brossard and J-P. Chen and Eugene Chudakov and Brianna M. Craver and Francesco Cusanno and Christiaan de Jager and Alexandre Deur and Renee Daiuta Feuerbach and J-M Fieschi and Salvatore Frullani and Marie Carmel Garcon and Francesca Garibaldi and Olivier Gayou and Robert H. Gilman and J. Gomez and Pascale Gueye and P. A. M. Guichon and Beno{\^i}t Guillon and Ole N\orby Hansen and Daniel F. Hayes and Douglas Higinbotham and T F Holmstrom and Charles Earl Hyde-Wright and H. Ibrahim and R. Igarashi and X. Jiang and H. S. Jo and Lauren J Kaufman and Andrea A Kelleher and A. Kolarkar and G J Kumbartzki and G. Laveissi{\`e}re and J. J. Lerose and R. G. Lindgren and N. D. B. Liyanage and H-J Lu and D. J. Margaziotis and Z-E. Meziani and Kinsey A McCormick and Richard H Michaels and B. Michel and Bryan J. Moffit and Phillip J. Monaghan and S. Nanda and V. I. Nelyubin and Matthias Potokar and Yi Qiang and Ronald D. Ransome and J-S R{\'e}al and Bruce A. Reitz and Y. R. Roblin and James F. Roche and Franck Sabati{\'e} and A. Saha and Simon {\vS}irca and Keith J. Slifer and Patricia H. Solvignon and Rajendra Prasad Subedi and Vincent Sulkosky and Peter Ulmer and Eric Voutier and K. Wang and L. B. Weinstein and Bogdan Wojtsekhowski and X. Zheng and L. Zhu}, journal={Physical review letters}, year={2006}, volume={97 26}, pages={262002} }