Title
Precision measurement of the top-quark mass from dilepton events at CDF II Precision measurement of the top-quark mass from dilepton events at CDF II
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Volume/pages
75(2007) :3 , p. 031105,1-031105,7
ISSN
0556-2821
ISI
000244534800005
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report a measurement of the top-quark mass, Mt, in the dilepton decay channel of tt̅ →bℓ′+νℓ′b̅ ℓ-ν̅ ℓ using an integrated luminosity of 1.0  fb-1 of pp̅ collisions collected with the CDF II detector. We apply a method that convolutes a leading-order matrix element with detector resolution functions to form event-by-event likelihoods; we have enhanced the leading-order description to describe the effects of initial-state radiation. The joint likelihood is the product of the likelihoods from 78 candidate events in this sample, which yields a measurement of Mt=164.5±3.9(stat.)±3.9(syst.)  GeV/c2, the most precise measurement of Mt in the dilepton channel.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/b66885/2dc18789.pdf
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