Research Papers in Physics and Astronomy


Date of this Version

January 2008


Published in Physics Letters B 658:4, (January 3, 2008), pp. 112–119; doi:10.1016/j.physletb.2007.10.046 Published by Elsevier B.V. Used by permission.


We present a study of events with Z bosons and associated jets produced at the Fermilab Tevatron collider in pp collisions at a center of mass energy of 1.96 TeV. The data sample consists of nearly 14 000 Z/γ*→e+e candidates corresponding to an integrated luminosity of 0.4 fb-1 collected with the DØ detector. Ratios of the Z/γ*+≥n jet cross sections to the total inclusive Z/γ* cross section have been measured for n = 1–4 jets, and found to be in good agreement with a next-to-leading order QCD calculation and with a tree-level QCD prediction with parton shower simulation and hadronization.

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