Measurement of the two-jet differential cross section in pp̅ collisions at √s=1800 GeV

Authors

T. Affolder, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

7-1-2001

Comments

Published by American Physical Society. Phys. Rev. D 64, 012001 (2001). http://prd.aps.org. Copyright © 2001 American Physical Society. Permission to use.

Abstract

A measurement is presented of the two-jet differential cross section d³σ/dE_Td η₁d η₂ at center of mass energy √s =1800 GeV in pp̅ collisions. The results are based on an integrated luminosity of 86 pb^-1 collected during 1994 to 1995 by the CDF Collaboration at the Fermilab Tevatron collider. The differential cross section is measured as a function of the transverse energy E_T of a jet in the pseudorapidity region 0.1 < | η₁| < 0.7 for four different pseudorapidity bins of a second jet restricted to 0.1 < |η₂| < 3.0. The results are compared with next-to-leading order QCD calculations determined using the CTEQ4 and MRST sets of parton distribution functions. None of the sets examined in this analysis provides a good description of the data.