The QCD pomeron in e+e- collisions
| dc.creator | Kwiecinski, J. | |
| dc.creator | Motyka, L. | |
| dc.date | 1999-04-27 | |
| dc.date.accessioned | 2026-07-07T04:06:56Z | |
| dc.date.available | 2026-07-07T04:06:56Z | |
| dc.description | The contribution of the QCD pomeron to the processes: e+e- to e+e- J/psi J/psi and e+ e- to e+ e- hadrons (with tagged electrons) is discussed. We focus on reactions which occur via photon-photon collisions, with virtual photons coming from the Weizsaecker-Wiliams spectrum of the electrons. We stress the importance of the non-leading corrections to the BFKL equation and take into account dominant non-leading effects which come from the requirement that the virtuality of the exchanged gluons along the gluon ladder is controlled by their transverse momentum squared. The γ* γ* cross-sections are found to increase with increasing γ* γ* CM energy W as (W^2)^{λ_P} while the cross-section for γγto J/psi J/psi is found to increase as (W^2)^{2λ_P}. The parameter λ_P is slowly varying with energy W and takes the values lambda_P \sim 0.23 - 0.35 depending on the process. We also analyze the contribution of the soft pomeron for the total γ* γ* cross-section. We compare results of our calculations to the recent data from LEP. | |
| dc.description | Contribution to the Cracow Epiphany Conference on Electron-Positron Colliders, Cracow 5-10 Jan. 1999, 20 pages, Latex, 6 PS figures, to appear in Acta Phys. Polon. B | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9904464 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9904464 | |
| dc.identifier | Acta Phys.Polon. B30 (1999) 1817-1836 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48963 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The QCD pomeron in e+e- collisions | |
| dc.type | text |