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Title
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Direct bound on the total decay width of the top quark in collisions at =1.96 TeV
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Author
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Institution/Organisation
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CDF Collaboration
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Abstract
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| We present the first direct experimental bound on the total decay width of the top quark, Γt, using 955 pb-1 of the Tevatrons pp̅ 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. |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
:
American Physical Society
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2009
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ISSN
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0031-9007
[print]
1079-7114
[online]
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Volume/pages
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102
:4
(2009)
, p. 042001,1-042001,7
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ISI
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000262978600009
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Full text (Publisher's DOI)
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Full text (open access)
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