Barkov, L.M.
E- P --> E- GAMMA P
[40.0, 50.0]
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Measurement of deeply virtual Compton scattering at HERA.

The ZEUS collaboration Chekanov, S. ; Derrick, M. ; Krakauer, D. ; et al.
Phys.Lett.B 573 (2003) 46-62, 2003.
Inspire Record 618776 DOI 10.17182/hepdata.46432

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.

4 data tables
Table 1

Measurements of the DVCS process cross section as a function of Q**2 at average W = 89 GeV. Data are given seperately for the E+ P and E- P interactions.

Table 2

Measurements of the DVCS process cross section as a function of W at average Q**2 = 9.6 GeV**2. For the E+ P data sample.

Table 3

Measurements of the DVCS process cross section as a function of W at average Q**2 = 9.6 GeV**2. For the E- P data sample.

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