Measurement of event shapes in deep inelastic scattering at HERA

  • The ZEUS Collaboration
  • S. Chekanov et al.
Experimental Physics


Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic ep scattering using an integrated luminosity of \(45.0 {\ {\rm pb^{-1}}}\) collected with the ZEUS detector at HERA. The variables studied included thrust, jet broadening and invariant jet mass. The kinematic range covered was 10 &lt; Q 2 &lt; 20 480 GeV 2 and \(6\times 10^{-4} < x < 0.6\), where Q2 is the virtuality of the exchanged boson and x is the Bjorken variable. The Q dependence of the shape variables has been used in conjunction with NLO perturbative calculations and the Dokshitzer-Webber non-perturbative corrections (`power corrections') to investigate the validity of this approach.


Inelastic Scattering Shape Variable Deep Inelastic Scattering Event Shape Integrate Luminosity 
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Copyright information

© Springer-Verlag Berlin Heidelberg / Società Italiana di Fisica 2003

Authors and Affiliations

  • The ZEUS Collaboration
  • S. Chekanov et al.
    • 1
  1. 1.Argonne National Laboratory, Argonne, Illinois 60439-4815, USA US

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