Parton Distributions with the Combined HERA Charm Production Cross Sections

Heavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad code...

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Detalles Bibliográficos
Autores principales: Bertone, Valerio, Rojo, Juan
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1063/1.4802114
http://cds.cern.ch/record/1497899
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author Bertone, Valerio
Rojo, Juan
author_facet Bertone, Valerio
Rojo, Juan
author_sort Bertone, Valerio
collection CERN
description Heavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad codes, and then present the impact of the recently released combined HERA charm production cross sections in the NNPDF2.3 analysis. We find that the combined charm data contribute to constraining the gluon and quarks at small values of Bjorken-x.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14978992023-03-14T17:53:21Zdoi:10.1063/1.4802114http://cds.cern.ch/record/1497899engBertone, ValerioRojo, JuanParton Distributions with the Combined HERA Charm Production Cross SectionsParticle Physics - PhenomenologyHeavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad codes, and then present the impact of the recently released combined HERA charm production cross sections in the NNPDF2.3 analysis. We find that the combined charm data contribute to constraining the gluon and quarks at small values of Bjorken-x.Heavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad codes, and then present the impact of the recently released combined HERA charm production cross sections in the NNPDF 2.3 analysis. We find that the combined charm data contribute to constraining the gluon and quarks at small values of Bjorken-x.Heavy quark structure functions from HERA provide a direct handle on the medium and small-x gluon PDF. In this contribution, we discuss ongoing progress on the implementation of the FONLL General-Mass scheme with running heavy quark masses, and of its benchmarking with the HOPPET and OpenQCDrad codes, and then present the impact of the recently released combined HERA charm production cross sections in the NNPDF2.3 analysis. We find that the combined charm data contribute to constraining the gluon and quarks at small values of Bjorken-x.arXiv:1212.0741oai:cds.cern.ch:14978992012-12-05
spellingShingle Particle Physics - Phenomenology
Bertone, Valerio
Rojo, Juan
Parton Distributions with the Combined HERA Charm Production Cross Sections
title Parton Distributions with the Combined HERA Charm Production Cross Sections
title_full Parton Distributions with the Combined HERA Charm Production Cross Sections
title_fullStr Parton Distributions with the Combined HERA Charm Production Cross Sections
title_full_unstemmed Parton Distributions with the Combined HERA Charm Production Cross Sections
title_short Parton Distributions with the Combined HERA Charm Production Cross Sections
title_sort parton distributions with the combined hera charm production cross sections
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1063/1.4802114
http://cds.cern.ch/record/1497899
work_keys_str_mv AT bertonevalerio partondistributionswiththecombinedheracharmproductioncrosssections
AT rojojuan partondistributionswiththecombinedheracharmproductioncrosssections

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