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Angular and current-target correlations in deep inelastic scattering at HERA

  • The ZEUS Collaboration
  • J. Breitweg et al.
Experimental physics

Abstract.

Correlations between charged particles in deep inelastic \(e^+p\) scattering have been studied in the Breit frame with the ZEUS detector at HERA using an integrated luminosity of 6.4 pb\(^{-1}\). Short-range correlations are analysed in terms of the angular separation between current-region particles within a cone centred around the virtual photon axis. Long-range correlations between the current and target regions have also been measured. The data support predictions for the scaling behaviour of the angular correlations at high \(Q^2\) and for anti-correlations between the current and target regions over a large range in \(Q^2\) and in the Bjorken scaling variable x. Analytic QCD calculations and Monte Carlo models correctly describe the trends of the data at high \(Q^2\), but show quantitative discrepancies. The data show differences between the correlations in deep inelastic scattering and \(e^+e^-\) annihilation.

Keywords

Charged Particle Large Range Target Region Quantitative Discrepancy Inelastic Scattering 
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 2000

Authors and Affiliations

  • The ZEUS Collaboration
  • J. Breitweg et al.
    • 1
  1. 1.Argonne National Laboratory, Argonne, IL, USA US

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