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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents

ID: 543218.0, MPI für Physik / MPI für Physik
Measurement and QCD Analysis of Neutral and Charged Current Cross Sections at HERA
Authors:H1 Collaboration; Adloff, C.; et al.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:European Physical Journal C
Journal Abbrev.:Eur.Phys.J.C
Issue / Number:30
Start Page:1
End Page:32
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The inclusive e^+ p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken in 1999 and 2000 at a centre-of-mass energy of \sqrt{s} = 319 GeV and correspond to an integrated luminosity of 65.2 pb^-1. The cross sections are measured in the range of four-momentum transfer squared Q^2 between 100 and 30000 GeV^2 and Bjorken x between 0.0013 and 0.65. The neutral current analysis for the new e^+ p data and the earlier e^- p data taken in 1998 and 1999 is extended to small energies of the scattered electron and therefore to higher values of inelasticity y, allowing a determination of the longitudinal structure function F_L at high Q^2 (110 - 700 GeV^2). A new measurement of the structure function x F_3 is obtained using the new e^+ p and previously published e^\pm p neutral current cross section data at high Q^2. These data together with H1 low Q^2 precision data are further used to perform new next-to-leading order QCD analyses in the framework of the Standard Model to extract flavour separated parton distributions in the proton.
Classification / Thesaurus:H1
Comment of the Author/Creator:54 pages, 19 figures and 15 tables
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
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