Research Papers in Physics and Astronomy

 

Date of this Version

January 2003

Comments

Published by American Physical Society. Phys. Rev. D 67, 012004 (2003). http://prd.aps.org. Copyright © 2003 American Physical Society. Used by permission.

Abstract

Results are presented on a measurement of the tt̅ pair production cross section in pp̅ collisions at √s = 1.8 TeV from nine independent decay channels. The data were collected by the DØ experiment during the 1992–1996 run of the Fermilab Tevatron Collider. A total of 80 candidate events is observed with an expected background of 38.8±3.3 events. For a top quark mass of 172.1 GeV/c2, the measured cross section is 5.69 ±1.21(stat) ±1.04(syst) pb.

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