Perturbative Evolution at Small $x$

We review small $x$ contributions to perturbative evolution equations for parton distributions, and their resummation. We emphasize in particular the resummation technique recently developed in order to deal with the apparent instability of naive small $x$ evolution kernels and understand the empiri...

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Detalles Bibliográficos
Autores principales: Altarelli, Guido, Ball, Richard D., Forte, Stefano
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/497216
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author Altarelli, Guido
Ball, Richard D.
Forte, Stefano
author_facet Altarelli, Guido
Ball, Richard D.
Forte, Stefano
author_sort Altarelli, Guido
collection CERN
description We review small $x$ contributions to perturbative evolution equations for parton distributions, and their resummation. We emphasize in particular the resummation technique recently developed in order to deal with the apparent instability of naive small $x$ evolution kernels and understand the empirical sucess of fixed--order perturbation theory. We give predictions for the gluon distribution and the structure functions F_2(x,Q^2) and F_L(x,Q^2) in an extended kinematic region, such as would be relevant for THERA or LEP+LHC ep colliders.
id cern-497216
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-4972162023-03-14T18:42:15Zhttp://cds.cern.ch/record/497216engAltarelli, GuidoBall, Richard D.Forte, StefanoPerturbative Evolution at Small $x$Particle Physics - PhenomenologyWe review small $x$ contributions to perturbative evolution equations for parton distributions, and their resummation. We emphasize in particular the resummation technique recently developed in order to deal with the apparent instability of naive small $x$ evolution kernels and understand the empirical sucess of fixed--order perturbation theory. We give predictions for the gluon distribution and the structure functions F_2(x,Q^2) and F_L(x,Q^2) in an extended kinematic region, such as would be relevant for THERA or LEP+LHC ep colliders.We review small $x$ contributions to perturbative evolution equations for parton distributions, and their resummation. We emphasize in particular the resummation technique recently developed in order to deal with the apparent instability of naive small $x$ evolution kernels and understand the empirical sucess of fixed--order perturbation theory. We give predictions for the gluon distribution and the structure functions F_2(x,Q^2) and F_L(x,Q^2) in an extended kinematic region, such as would be relevant for THERA or LEP+LHC ep colliders.hep-ph/0104246CERN-TH-2001-114EDINBURGH-2001-02RM3-TH-01-5CERN-TH-2001-114EDINBURGH-2001-02RM-3-TH-2001-5oai:cds.cern.ch:4972162001-04-24
spellingShingle Particle Physics - Phenomenology
Altarelli, Guido
Ball, Richard D.
Forte, Stefano
Perturbative Evolution at Small $x$
title Perturbative Evolution at Small $x$
title_full Perturbative Evolution at Small $x$
title_fullStr Perturbative Evolution at Small $x$
title_full_unstemmed Perturbative Evolution at Small $x$
title_short Perturbative Evolution at Small $x$
title_sort perturbative evolution at small $x$
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/497216
work_keys_str_mv AT altarelliguido perturbativeevolutionatsmallx
AT ballrichardd perturbativeevolutionatsmallx
AT fortestefano perturbativeevolutionatsmallx

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