The Reggeon $\to$ 2 Reggeons $+$ Particle vertex in the Lipatov effective action formalism

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dc.creatorBraun, M. A.
dc.creatorVyazovsky, M. I.
dc.date2006-12-23
dc.date2007-02-25
dc.date.accessioned2026-07-07T10:37:41Z
dc.date.available2026-07-07T10:37:41Z
dc.descriptionThe vertex for gluon emission during the splitting of a reggeized gluon into two is constructed in the framework of Lipatov effective action formalism. Its reduction to a pure transverse form for the diffractive amplitude gives the standard Bartels vertex plus an additional contribution corresponding to the emission from a pointlike splitting vertex. This additional contribution turns out to be given by a longitudinal integral divergent both in the ultraviolet and infrared. A certain specific recipe for this part, including the principal value prescription for the integration, allows to eliminate this unwanted contribution.
dc.description4 figures; misprints corrected; to be published in Eur.Phys.J. C
dc.identifierhttps://arxiv.org/abs/hep-ph/0612323
dc.identifierhttp://arxiv.org/abs/hep-ph/0612323
dc.identifierEur.Phys.J.C51:103-111,2007
dc.identifierdoi:10.1140/epjc/s10052-007-0270-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180459
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Reggeon $\to$ 2 Reggeons $+$ Particle vertex in the Lipatov effective action formalism
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