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A QCD analysis of ZEUS data including dis inclusive cross sections with longitudinally polarised leptons and data run at lower proton beam energies

Abstract:
New ZEUS data are added into the NLO QCD analysis of the ZEUS-JETS PDF fit. The addition of high-Q2 NC and CC e- p inclusive cross-section data improves the determination of the u-valence quark at high x. The addition of high-Q2 CC e+p inclusive cross-section data improves the determination of the d-valence quark at high x. The addition of lower-Q2 NC e+ p inclusive cross-section data, run at three difierent proton beam energies, improves the determination of the sea and gluon PDFs at small x. The new PDF fit is called the ZEUS09 PDF fit.

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Particle Physics
Journal:
DIS 2009 - Proceedings of the 17th International Workshop on Deep-Inelastic Scattering and Related Topics
Publication date:
2009
URN:
uuid:31610abb-ae88-4bf0-a374-1d731fb53b44
Source identifiers:
455346
Local pid:
pubs:455346
Language:
English

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