Collinear improvement of the BFKL kernel in the electroproduction of two light vector mesons

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dc.creatorCaporale, Francesco
dc.creatorPapa, Alessandro
dc.creatorVera, Agustin Sabio
dc.date2007-07-27
dc.date2008-02-02
dc.date.accessioned2026-07-07T11:18:12Z
dc.date.available2026-07-07T11:18:12Z
dc.descriptionThe use of the BFKL kernel improved by the inclusion of subleading terms generated by renormalization group (RG) analysis has been suggested to cure the instabilities in the behavior of the BFKL Green's function in the next-to-leading approximation (NLA). We test the performance of a RG-improved kernel in the determination of the amplitude of a physical process, the electroproduction of two light vector mesons, in the BFKL approach in the NLA. We find that a smooth behavior of the amplitude with the center-of-mass energy can be achieved, setting the renormalization and energy scales appearing in the subleading terms to values much closer to the kinematical scales of the process than in the approaches based on the unimproved kernel.
dc.description14 pages, 4 figures, uses axodraw.sty; four references added; version published on Eur. Phys. J. C
dc.identifierhttps://arxiv.org/abs/0707.4100
dc.identifierhttp://arxiv.org/abs/0707.4100
dc.identifierEur.Phys.J.C53:525-532,2008
dc.identifierdoi:10.1140/epjc/s10052-007-0481-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193264
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCollinear improvement of the BFKL kernel in the electroproduction of two light vector mesons
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