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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Guardado en:
Detalles Bibliográficos
Publicado: 2008
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:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v101_n7_p_DeFlorian
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 paper:paper_00319007_v101_n7_p_DeFlorian
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spelling paper:paper_00319007_v101_n7_p_DeFlorian2023-06-08T14:57:49Z Global analysis of helicity parton densities and their uncertainties 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. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v101_n7_p_DeFlorian 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
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.
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
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v101_n7_p_DeFlorian
http://hdl.handle.net/20.500.12110/paper_00319007_v101_n7_p_DeFlorian
_version_ 1768542976650248192

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