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Measurement and QCD analysis of neutral and charged current cross sections at HERA

  • The H1 Collaboration
experimental physics

Abstract.

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 \(\sqrt{s} = 319{\rm GeV}\) and correspond to an integrated luminosity of 65.2 pb-1. The cross sections are measured in the range of four-momentum transfer squared Q2 between 100 and \(30 000{\rm GeV}^2\) 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 FL at high Q2 (\(110-700{\rm GeV}^2\)). A new measurement of the structure function \(x\tilde{F}_3\) is obtained using the new e+p and previously published \(e^\pm p\) neutral current cross section data at high Q2. These data together with H1 low Q2 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.

Keywords

Structure Function Differential Cross Section Differential Cross Parton Distribution Scattered Electron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • The H1 Collaboration

There are no affiliations available

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