Higher Order Effects in Non Linear Evolution from a Veto in Rapidities

dc.creatorChachamis, G.
dc.creatorLublinsky, M.
dc.creatorVera, A Sabio
dc.date2004-08-30
dc.date.accessioned2026-07-07T11:09:33Z
dc.date.available2026-07-07T11:09:33Z
dc.descriptionHigher order corrections to the Balitsky-Kovchegov equation have been estimated by introducing a rapidity veto which forbids subsequent emissions to be very close in rapidity and is known to mimic higher order corrections to the linear BFKL equation. The rapidity veto constraint has been first introduced using analytical arguments obtaining a power growth with energy, Q_s (Y) ~ exp(lambda Y), of the saturation scale of lambda ~ 0.45. Then a numerical analysis for the non-linear Balitsky-Kovchegov equation has been carried out for phenomenological rapidities: when a veto of about two units of rapidity is introduced for a fixed value of the coupling constant of alpha_s = 0.2 the saturation scale lambda decreases from ~ 0.6 to ~ 0.3, and when running coupling effects are taken into account it decreases from ~ 0.4 to ~ 0.3.
dc.description17 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0408333
dc.identifierhttp://arxiv.org/abs/hep-ph/0408333
dc.identifierNucl.Phys.A748:649-663,2005
dc.identifierdoi:10.1016/j.nuclphysa.2004.11.011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190503
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHigher Order Effects in Non Linear Evolution from a Veto in Rapidities
dc.typetext

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