Consistent Treatment of Soft and Hard Processes in Hadronic Interactions

Simple item page
dc.creatorLiu, F. M.
dc.creatorDrescher, H. J.
dc.creatorOstapchenko, S.
dc.creatorPierog, T.
dc.creatorWerner, K.
dc.date2001-09-12
dc.date.accessioned2026-07-07T10:52:25Z
dc.date.available2026-07-07T10:52:25Z
dc.descriptionThe QCD improved parton model is a very successful concept to treat processes in hadronic interactions, whenever large partonic transverse momenta are involved. However, cross sections diverge in the limit p_T -> 0, and the usual treatment is the definition of a lower cutoff p_T_min, such that processes with a smaller p_T -- so-called soft processes -- are simply ignored, which is certainly not correct for example at RHIC energies. A more consistent procedure amounts to introduce a technical parameter Q_0^2, referred to as soft virtuality scale, which is nothing but an artificial borderline between soft and hard physics. We will discuss such a formalism, which coincides with the improved parton model for high p_T processes and with the phenomenological treatment of soft scattering, when only small virtualities are involved. The most important aspect of our approach is that it allows to obtain a smooth transition between soft and hard scattering, and therefore no artificial dependence on a cutoff parameter should appear.
dc.description19 pages, 19 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0109104
dc.identifierhttp://arxiv.org/abs/hep-ph/0109104
dc.identifierJ.Phys.G28:2597-2616,2002
dc.identifierdoi:10.1088/0954-3899/28/10/306
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185151
dc.subjectHigh Energy Physics - Phenomenology
dc.titleConsistent Treatment of Soft and Hard Processes in Hadronic Interactions
dc.typetext

Files

Collections

arXiv