Photoproduction Cross Sections at HERA Energies
| dc.creator | Durand, L. | |
| dc.creator | Honjo, K. | |
| dc.creator | Gandhi, R. | |
| dc.creator | Pi, H. | |
| dc.creator | Sarcevic, I. | |
| dc.date | 1993-09-11 | |
| dc.date.accessioned | 2026-07-07T03:56:24Z | |
| dc.date.available | 2026-07-07T03:56:24Z | |
| dc.description | We show that photoproduction cross sections recently measured by ZEUS and H-1 at HERA energies$^1$ are in agreement with our earlier prediction based on high-energy hadronic structure of the photon in the QCD minijet-type model$^2$. We present results of an improved calculation of the photoproduction cross section, in which the soft part, motivated by the Regge theory, is taken to be energy-dependent and the semi-hard hadronic part is carefully eikonalized to take into account for the multiple scatterings and to include the appropriate probability that photon would act hadronicaly$^3$. We also show that the extrapolation of our cross section to ultra-high energies, of relevance to the cosmic ray physics, gives significant contribution to the ``conventional'' value, but cannot account for the anomalous muon content observed in the cosmic ray air-showers associated with astrophysical point sources$^4$. | |
| dc.description | University of Arizona preprint AZPH-TH/93-30, PlainTex, 8 pages, 3 figs. (available upon request as .ps files or via regular mail); (Talk presented by I. Sarcevic at the Workshop on Current Colliders and the Supercollider, Argonne National Laboratory, June 2-5, 1993.) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9309255 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9309255 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44956 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Photoproduction Cross Sections at HERA Energies | |
| dc.type | text |