Title
Direct bound on the total decay width of the top quark in <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV Direct bound on the total decay width of the top quark in <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
102(2009) :4 , p. 042001,1-042001,7
ISSN
0031-9007
ISI
000262978600009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present the first direct experimental bound on the total decay width of the top quark, Γt, using 955  pb-1 of the Tevatrons pp&#773; collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood-ratio ordering, we extract an upper limit at 95% C.L. of Γt<13.1  GeV for an assumed top quark mass of 175  GeV/c2.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/f17a14/cdde7b33.pdf
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