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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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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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English
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| Source (journal) |
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Physical review letters. - New York, N.Y. |
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| Publication |
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New York, N.Y. : 2009
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| ISSN |
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0031-9007
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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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