Authors
C Munoz Camacho, Alexandre Camsonne, Malek Mazouz, Catherine Ferdi, Gagik Gavalian, Elena Kuchina, M Amarian, KA Aniol, Matthieu Beaumel, Hachemi Benaoum, Pierre Bertin, Michel Brossard, J-P Chen, Eugene Chudakov, Brandon Craver, Francesco Cusanno, CW De Jager, Alexandre Deur, Robert Feuerbach, J-M Fieschi, Salvatore Frullani, Michel Garçon, Franco Garibaldi, Olivier Gayou, Ronald Gilman, Javier Gomez, Paul Gueye, PAM Guichon, Benoit Guillon, O Hansen, David Hayes, Douglas Higinbotham, Timothy Holmstrom, CE Hyde-Wright, Hassan Ibrahim, Ryuichi Igarashi, Xiaodong Jiang, Hyon-Suk Jo, LJ Kaufman, Aidan Kelleher, Ameya Kolarkar, Gerfried Kumbartzki, Geraud Laveissiere, JJ LeRose, Richard Lindgren, Nilanga Liyanage, H-J Lu, DJ Margaziotis, Z-E Meziani, Kathy McCormick, Robert Michaels, Bernard Michel, Bryan Moffit, Peter Monaghan, Sirish Nanda, Vladimir Nelyubin, Milan Potokar, Yi Qiang, RD Ransome, J-S Réal, Bodo Reitz, Yves Roblin, Julie Roche, Franck Sabatie, Arunava Saha, Simon Sirca, Karl Slifer, Patricia Solvignon, Ramesh Subedi, Vincent Sulkosky, PE Ulmer, Eric Voutier, Kebin Wang, LB Weinstein, Bogdan Wojtsekhowski, Xiaochao Zheng, Lingyan Zhu, Jefferson Lab Hall A Collaboration
Publication date
2006/12/29
Journal
Physical review letters
Volume
97
Issue
26
Pages
262002
Publisher
American Physical Society
Description
We present the first measurements of the cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region. The dependence (from 1.5 to ) of the helicity-dependent cross section indicates the twist-2 dominance of DVCS, proving that generalized parton distributions (GPDs) are accessible to experiment at moderate . The helicity-independent cross section is also measured at . We present the first model-independent measurement of linear combinations of GPDs and GPD integrals up to the twist-3 approximation.
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Scholar articles
CM Camacho, A Camsonne, M Mazouz, C Ferdi… - Physical review letters, 2006