Improving the equivalent-photon approximation in electron--positron collisions
| dc.creator | Schuler, Gerhard A. | |
| dc.date | 1996-10-18 | |
| dc.date.accessioned | 2026-07-07T04:00:34Z | |
| dc.date.available | 2026-07-07T04:00:34Z | |
| dc.description | The validity of the equivalent-photon approximation for two-photon processes in electron--positron collisions is critically examined. Commonly used forms to describe hadronic two-photon production are shown to lead to sizeable errors. An improved two-photon luminosity function is presented, which includes beyond-leading-logarithmic effects and scalar-photon contributions. Comparisons of various approximate expressions with the exact calculation in the case of the total hadronic cross section are given. Furthermore, effects of the poorly known low-Q2 behaviour of the virtual hadronic cross sections are discussed. | |
| dc.description | 10 pages, Latex, uses 12pt.sty, no figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9610406 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9610406 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/46586 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Improving the equivalent-photon approximation in electron--positron collisions | |
| dc.type | text |