Theoretical description of the total gamma*gamma* cross-section and its confrontation with the LEP data on doubly tagged e+e- events

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dc.creatorKwiecinski, J.
dc.creatorMotyka, L.
dc.date2000-10-04
dc.date.accessioned2026-07-07T12:26:04Z
dc.date.available2026-07-07T12:26:04Z
dc.descriptionWe perform a detailed analysis of the total inelastic cross-section for gamma*gamma* collisions. Different contributions coming from the quark box diagram, reggeons, the soft and hard pomeron are included. The QCD pomeron contribution contains a dominant part of subleading effects which reduces its intercept and delays the onset of the asymptotic pomeron to high energies. Estimates of the cross-section for doubly-tagged (e+e- to e+e- hadrons) events are presented and compared with the existing LEP data. Good agreement between the theoretical results and the experimental data is found. We also comment on the extraction of the BFKL pomeron intercept from the available LEP measurements.
dc.descriptionLatex, 14 pages and 8 eps figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0010029
dc.identifierhttp://arxiv.org/abs/hep-ph/0010029
dc.identifierEur.Phys.J.C18:343-351,2000
dc.identifierdoi:10.1007/s100520000535
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214765
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTheoretical description of the total gamma*gamma* cross-section and its confrontation with the LEP data on doubly tagged e+e- events
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