Measurement of the ratios of the Z/γ*+≥n jet production cross sections to the total inclusive Z/γ* cross section in pp collisions at √s = 1.96 TeV

Authors

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Gregory Snow, University of Nebraska-LincolnFollow
D0 Collaboration

Date of this Version

January 2008

Comments

Published in Physics Letters B 658:4, (January 3, 2008), pp. 112–119; doi:10.1016/j.physletb.2007.10.046 http://www.sciencedirect.com/science/journal/03702693 Published by Elsevier B.V. Used by permission.

Abstract

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.