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Measurement of neutral and charged current cross sections in electron-proton collisions at high \(Q^2\)

  • The H1 Collaboration
  • C. Adloff et al.
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, in the range of four-momentum transfer squared \(Q^2\) between 150 and 30 000 GeV\(^2\), and Bjorken x between 0.002 and 0.65. The data were taken in 1998 and 1999 with a centre-of-mass energy of 320 GeV and correspond to an integrated luminosity of 16.4 pb\(^{-1}\). The data are compared with recent measurements of the inclusive neutral and charged current \(e^+ p\) cross sections. For \(Q^2>1\,000{\rm GeV}^2\) clear evidence is observed for an asymmetry between \(e^+p\) and \(e^-p\) neutral current scattering and the generalised structure function \(x{\tilde{F}_3}\) is extracted for the first time at HERA. A fit to the charged current data is used to extract a value for the W boson propagator mass. The data are found to be in good agreement with Standard Model predictions.

Keywords

Model Prediction Structure Function Differential Cross Section Differential Cross Current Process 
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 2001

Authors and Affiliations

  • The H1 Collaboration
  • C. Adloff et al.
    • 1
  1. 1.Fachbereich Physik, Bergische Universität Gesamthochschule Wuppertal, Wuppertal, Germany DE

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