Global analysis of helicity parton densities and their uncertainties

We present a new analysis of the helicity parton distributions of the nucleon. The analysis takes into account the available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized proton-proton (p-p) scattering at RHIC. For the first time, all theoretic...

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Autores principales: De Florian, D., Sassot, R., Stratmann, M., Vogelsang, W.
Formato: JOUR
Materias:
Offshore oil well production
Protons
Deep-inelastic scattering
Global analysis
Gluon polarization
Helicity
Momentum fraction
Next-to-leading order
NLO corrections
Parton densities
Parton distributions
Perturbative QCD
Theoretical calculations
Uncertainty analysis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v101_n7_p_DeFlorian
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319007_v101_n7_p_DeFlorian
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spelling todo:paper_00319007_v101_n7_p_DeFlorian2023-10-03T14:42:03Z Global analysis of helicity parton densities and their uncertainties De Florian, D. Sassot, R. Stratmann, M. Vogelsang, W. Offshore oil well production Protons Deep-inelastic scattering Global analysis Gluon polarization Helicity Momentum fraction Next-to-leading order NLO corrections Parton densities Parton distributions Perturbative QCD Theoretical calculations Uncertainty analysis We present a new analysis of the helicity parton distributions of the nucleon. The analysis takes into account the available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized proton-proton (p-p) scattering at RHIC. For the first time, all theoretical calculations are performed fully at next-to-leading order (NLO) of perturbative QCD, using a method that allows incorporation of the NLO corrections in a very fast and efficient way in the analysis. We find evidence for a rather small gluon polarization in the nucleon, over a limited region of momentum fraction, and for interesting flavor patterns in the polarized sea. © 2008 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v101_n7_p_DeFlorian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Offshore oil well production
Protons
Deep-inelastic scattering
Global analysis
Gluon polarization
Helicity
Momentum fraction
Next-to-leading order
NLO corrections
Parton densities
Parton distributions
Perturbative QCD
Theoretical calculations
Uncertainty analysis
spellingShingle Offshore oil well production
Protons
Deep-inelastic scattering
Global analysis
Gluon polarization
Helicity
Momentum fraction
Next-to-leading order
NLO corrections
Parton densities
Parton distributions
Perturbative QCD
Theoretical calculations
Uncertainty analysis
De Florian, D.
Sassot, R.
Stratmann, M.
Vogelsang, W.
Global analysis of helicity parton densities and their uncertainties
topic_facet Offshore oil well production
Protons
Deep-inelastic scattering
Global analysis
Gluon polarization
Helicity
Momentum fraction
Next-to-leading order
NLO corrections
Parton densities
Parton distributions
Perturbative QCD
Theoretical calculations
Uncertainty analysis
description We present a new analysis of the helicity parton distributions of the nucleon. The analysis takes into account the available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized proton-proton (p-p) scattering at RHIC. For the first time, all theoretical calculations are performed fully at next-to-leading order (NLO) of perturbative QCD, using a method that allows incorporation of the NLO corrections in a very fast and efficient way in the analysis. We find evidence for a rather small gluon polarization in the nucleon, over a limited region of momentum fraction, and for interesting flavor patterns in the polarized sea. © 2008 The American Physical Society.
format JOUR
author De Florian, D.
Sassot, R.
Stratmann, M.
Vogelsang, W.
author_facet De Florian, D.
Sassot, R.
Stratmann, M.
Vogelsang, W.
author_sort De Florian, D.
title Global analysis of helicity parton densities and their uncertainties
title_short Global analysis of helicity parton densities and their uncertainties
title_full Global analysis of helicity parton densities and their uncertainties
title_fullStr Global analysis of helicity parton densities and their uncertainties
title_full_unstemmed Global analysis of helicity parton densities and their uncertainties
title_sort global analysis of helicity parton densities and their uncertainties
url http://hdl.handle.net/20.500.12110/paper_00319007_v101_n7_p_DeFlorian
work_keys_str_mv AT defloriand globalanalysisofhelicitypartondensitiesandtheiruncertainties
AT sassotr globalanalysisofhelicitypartondensitiesandtheiruncertainties
AT stratmannm globalanalysisofhelicitypartondensitiesandtheiruncertainties
AT vogelsangw globalanalysisofhelicitypartondensitiesandtheiruncertainties
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