DVCS at HERA
| dc.creator | Frankfurt, L. | |
| dc.creator | Freund, A. | |
| dc.creator | Strikman, M. | |
| dc.date | 1998-06-18 | |
| dc.date.accessioned | 2026-07-07T04:04:06Z | |
| dc.date.available | 2026-07-07T04:04:06Z | |
| dc.description | We demonstrate that perturbative QCD allows one to calculate the absolute cross section of diffractive exclusive production of photons at large $Q^2$ at HERA, while the aligned jet model allows one to estimate the cross section for intermediate $Q^2 \sim 2 GeV^2$. Furthermore, we find that the imaginary part of the amplitude for the production of real photons is larger than the imaginary part of the corresponding DIS amplitude by a factor of about 2, leading to predictions of a significant counting rate for the current generation of experiments at HERA. We also find a large azimuthal angle asymmetry in $ep$ scattering for HERA kinematics which allows one to directly measure the real part of the DVCS amplitude and hence the nondiagonal parton distributions. | |
| dc.description | 4 pages, 2 figures, using sprocl.sty file, to appear in the proceedings of DIS'98, Brussels, April'98 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9806406 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9806406 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47946 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | DVCS at HERA | |
| dc.type | text |