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.