Towards small x resummed DIS phenomenology

We report on recent progress towards quantitative phenomenology of small x resummation of deep-inelastic structure functions. We compute small x resummed K-factors with realistic PDFs and estimate their impact in the HERA kinematical region. These K-factors, which match smoothly to the fixed order N...

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Detalles Bibliográficos
Autores principales: Rojo, Juan, Altarelli, Guido, Ball, Richard D., Forte, Stefano
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/1187793
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author Rojo, Juan
Altarelli, Guido
Ball, Richard D.
Forte, Stefano
author_facet Rojo, Juan
Altarelli, Guido
Ball, Richard D.
Forte, Stefano
author_sort Rojo, Juan
collection CERN
description We report on recent progress towards quantitative phenomenology of small x resummation of deep-inelastic structure functions. We compute small x resummed K-factors with realistic PDFs and estimate their impact in the HERA kinematical region. These K-factors, which match smoothly to the fixed order NLO results, approximately reproduce the effect of a small x resummed PDF analysis. Typical corrections are found to be of the same order as the NNLO ones, that is, a few percent, but with opposite sign. These results imply that resummation corrections could be relevant for a global PDF analysis, especially with the very precise combined HERA dataset.
id cern-1187793
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11877932023-03-14T16:46:26Zhttp://cds.cern.ch/record/1187793engRojo, JuanAltarelli, GuidoBall, Richard D.Forte, StefanoTowards small x resummed DIS phenomenologyParticle Physics - PhenomenologyWe report on recent progress towards quantitative phenomenology of small x resummation of deep-inelastic structure functions. We compute small x resummed K-factors with realistic PDFs and estimate their impact in the HERA kinematical region. These K-factors, which match smoothly to the fixed order NLO results, approximately reproduce the effect of a small x resummed PDF analysis. Typical corrections are found to be of the same order as the NNLO ones, that is, a few percent, but with opposite sign. These results imply that resummation corrections could be relevant for a global PDF analysis, especially with the very precise combined HERA dataset.arXiv:0907.0443oai:cds.cern.ch:11877932009-07-03
spellingShingle Particle Physics - Phenomenology
Rojo, Juan
Altarelli, Guido
Ball, Richard D.
Forte, Stefano
Towards small x resummed DIS phenomenology
title Towards small x resummed DIS phenomenology
title_full Towards small x resummed DIS phenomenology
title_fullStr Towards small x resummed DIS phenomenology
title_full_unstemmed Towards small x resummed DIS phenomenology
title_short Towards small x resummed DIS phenomenology
title_sort towards small x resummed dis phenomenology
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1187793
work_keys_str_mv AT rojojuan towardssmallxresummeddisphenomenology
AT altarelliguido towardssmallxresummeddisphenomenology
AT ballrichardd towardssmallxresummeddisphenomenology
AT fortestefano towardssmallxresummeddisphenomenology

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