Publications
Publication Information
| Title | The E00-110 experiment in Jefferson Lab's Hall A: Deeply Virtual Compton Scattering off the Proton at 6 GeV |
| Authors | Maxime Defurne, Moskov Amaryan, Konrad Aniol, Matthieu Beaumel, Hachemi Benaoum, Pierre Bertin, Michel Brossard, Alexandre Camsonne, Jian-Ping Chen, Eugene Chudakov, Brandon Craver, Francesco Cusanno, Cornelis De Jager, Alexandre Deur, Robert Feuerbach, Catherine Ferdi, Jean Fieschi, Salvatore Frullani, Eric Fuchey, Michel Garcon, Franco Garibaldi, Olivier Gayou, Gagik Gavalian, Ronald Gilman, Javier Gomez, Paul Gueye, Pierre Guichon, Benoit Guillon, Jens-Ole Hansen, David Hayes, Douglas Higinbotham, Timothy Holmstrom, Charles Hyde, Hassan Abdalla, Ryuichi Igarashi, Xiaodong Jiang, Hyon-Suk Jo, L. Kaufman, Aidan Kelleher, Cynthia Keppel, Ameya Kolarkar, Elena Kuchina, Gerfried Kumbartzki, Geraud Laveissiere, John LeRose, Richard Lindgren, Nilanga Liyanage, Hai-jiang Lu, Demetrius Margaziotis, Malek Mazouz, Zein-Eddine Meziani, Kathy McCormick, Robert Michaels, Bernard Michel, Bryan Moffit, Peter Monaghan, Carlos Munoz Camacho, Sirish Nanda, Vladimir Nelyubin, Rafayel Paremuzyan, Milan Potokar, Yi Qiang, Ronald Ransome, Jean-Sebastien Real, Bodo Reitz, Yves Roblin, Julie Roche, Franck Sabatie, Arunava Saha, Simon Sirca, Karl Slifer, Patricia Solvignon-Slifer, Ramesh Subedi, Vincent Sulkosky, Paul Ulmer, Eric Voutier, Kebin Wang, Lawrence Weinstein, Bogdan Wojtsekhowski, Xiaochao Zheng, Lingyan Zhu |
| JLAB number | JLAB-PHY-15-2038 |
| LANL number | arXiv:1504.05453 |
| Other number | DOE/OR/23177-3340 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
|
Journal Compiled for Physical Review C Volume 92 Issue 05 Page(s) 055202 Refereed | |
| Publication Abstract: | We present final results on the photon electroproduction ($\vec{e}p\rightarrow ep\gamma$) cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region from Jefferson Lab experiment E00-110. Results from an analysis of a subset of these data were published before, but the analysis has been improved which is described here at length, together with details on the experimental setup. Furthermore, additional data have been analyzed resulting in photon electroproduction cross sections at new kinematic settings, for a total of 588 experimental bins. Results of the $Q^2$- and $x_B$-dependences of both the helicity-dependent and helicity-independent cross sections are discussed. The $Q^2$-dependence illustrates the dominance of the twist-2 handbag amplitude in the kinematics of the experiment, as previously noted. Thanks to the excellent accuracy of this high luminosity experiment, it becomes clear that the unpolarized cross section shows a significant deviation from the Bethe-Heitler process in our kinematics, compatible with a large contribution from the leading twist-2 DVCS$^2$ term to the photon electroproduction cross section. The necessity to include higher-twist corrections in order to fully reproduce the shape of the data is also discussed. The DVCS cross sections in this paper represent the final set of experimental results from E00-110, superseding the previous publication. |
| Experiment Numbers: | E00-110 |
| Group: | Hall A |
| Document: | |
| DOI: | http://dx.doi.org/10.1103/PhysRevC.92.055202 |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |