Measurement of deeply virtual Compton scattering at HERA

Details Measurement of deeply virtual Compton scattering at HERA Measurement of deeply virtual Compton scattering at HERA

2003-05-14

arxiv.org/abs/hep-ex/0305028v2

Phys.Lett.B573:46-62,2003

Physics

High Energy Physics

High Energy Physics - Experiment

23 pages, 6 figures, 3 tables. Minor wording and changes to references

Scientific paper

10.1016/j.physletb.2003.08.048

The cross section for deeply virtual Compton scattering in the reaction ep -> e gamma p has been measured with the ZEUS detector at HERA using integrated luminosities of 95.0 pb-1 of e+p and 16.7 pb-1 of e-p collisions. Differential cross sections are presented as a function of the exchanged-photon virtuality, Q2, and the centre-of-mass energy, W, of the gamma*p system in the region 5 < Q2 < 100 GeV2 and 40 < W < 140 GeV. The measured cross sections rise steeply with increasing W. The measurements are compared to QCD-based calculations.

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