Color-Octet Contributions to $J/ψ$ Photoproduction
| dc.creator | Cacciari, Matteo | |
| dc.creator | Krämer, Michael | |
| dc.date | 1996-01-16 | |
| dc.date.accessioned | 2026-07-07T13:02:38Z | |
| dc.date.available | 2026-07-07T13:02:38Z | |
| dc.description | We have calculated the leading color-octet contributions to the production of $J/ψ$ particles in photon-proton collisions. Using the values for the color-octet matrix elements extracted from fits to prompt $J/ψ$ data at the Tevatron, we demonstrate that distinctive color-octet signatures should be visible in $J/ψ$ photoproduction. However, these predictions appear at variance with recent experimental data obtained at HERA, indicating that the phenomenological importance of the color-octet contributions is smaller than expected from theoretical considerations and suggested by the Tevatron fits. | |
| dc.description | 10 pages, LaTeX, epsfig, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9601276 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9601276 | |
| dc.identifier | Phys.Rev.Lett.76:4128-4131,1996 | |
| dc.identifier | doi:10.1103/PhysRevLett.76.4128 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/226513 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Color-Octet Contributions to $J/ψ$ Photoproduction | |
| dc.type | text |