The general-purpose heavy ion experiment ALICE at LHC has been designed to measure single- and two-particle distributions of identified mesons,leptons,and photons in central collisions of two lead ions at √ s=5.5 TeV. In this note we present an estimate of the ALICE ability to measure hard QCD jets. The rate of jets expected in ALICE was determined using PYTHIA. We first calculated the inclusive jet cross section in p¯p collision at √ s=1.8 TeV and compared it to the data of the D0 experiment. As shown in Fig. 1,the PYTHIA calculation,up-scaled by K=1.5,describes the data reasonably well. The calculation was performed in three runs differing by the value of the CKIN(50) parameter which defines the minimum momentum transfer,i.e. the “hardness” of a collision. The three curves,corresponding to CKIN(3) of 50,100,and 200 GeV,nicely match in overlap regions. The CTEQ4HJ structure function was used. d 2 σ /dη/dE T (fb/GeV
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