Measurement of the Top Quark Mass with the Collider Detector at Fermilab

Authors

• F. Abe, National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

1-11-1999

Comments

Published by American Physical Society. Phys. Rev. Lett. 82, 271 (1999). http://prl.aps.org. Copyright © 1999 American Physical Society. Permission to use.

Abstract

We present a new measurement of the top quark mass in tt̅ events in which both W bosons from top quarks decay into leptons (eν, μν). We use events collected by the CDF experiment from pp̅ collisions at √s =1.8 TeV at the Tevatron collider. We measure a top quark mass of 167.4 ± 10.3(stat) ± 4.8(syst) GeV/c² from a sample of eight events. We combine this result with previous CDF measurements in other decay channels to obtain a final mass value of 176.0 ± 6.5 GeV/c².