Inclusive Jet Cross Sections in Collisions at = 630 and 1800 GeV
arXiv:hep-ex/0001063 · doi:10.1016/S0920-5632(99)00683-0
Abstract
We have made a precise measurement of the inclusive jet cross section at =1800 GeV. The result is based on an integrated luminosity of 92 pb^{-1} collected at the Fermilab Tevatron Collider with the DØdetector. The measurement is reported as a function of jet transverse energy (60 GeV <= E_{T} < 550 GeV), and in the pseudorapidity intervals |η| <= 0.5 and 0.1 <= |η| <= 0.7. A preliminary measurement of the pseudorapidity dependence of inclusive jet production (|η| <= 1.5) is also discussed. The results are in good agreement with predictions from next-to-leading order (NLO) quantum chromodynamics (QCD). DØhas also determined the ratio of jet cross sections at =630 GeV and =1800 GeV (|η| <= 0.5). This preliminary measurement differs from NLO QCD predictions.
Submitted to the International Europhysics Conference on High Energy Physics, EPS-HEP99, 15-21 July, 1999, Tampere, Finland