QCD, conformal invariance and the two pomerons

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dc.creatorMunier, S.
dc.creatorPeschanski, R.
dc.date1998-11-19
dc.date1999-03-25
dc.date.accessioned2026-07-07T11:35:34Z
dc.date.available2026-07-07T11:35:34Z
dc.descriptionUsing the solution of the BFKL equation including the leading and subleading conformal spin components, we show how the conformal invariance underlying the leading log 1/x expansion of perturbative QCD leads to elastic amplitudes described by two effective Pomeron singularities. One Pomeron is the well-known "hard" BFKL leading singularity while the new one appears from a shift of the higher conformal spin BFKL singularities from subleading to leading position. This new effective singularity is compatible with the "soft" Pomeron and thus, together with the "hard" Pomeron, meets at large Q^2 the "double Pomeron" solution which has been recently conjectured by Donnachie and Landshoff.
dc.descriptionDiscussion developped, conclusions unchanged; version to appear in Eur.Phys.J. C
dc.identifierhttps://arxiv.org/abs/hep-ph/9811400
dc.identifierhttp://arxiv.org/abs/hep-ph/9811400
dc.identifierEur.Phys.J.C9:479-485,1999
dc.identifierdoi:10.1007/s100529900063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198633
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQCD, conformal invariance and the two pomerons
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