Determination of the Width of the Top Quark

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10105150" target="_blank" >RIV/00216208:11320/11:10105150 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/11:00184332 RIV/68378271:_____/11:00367641
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.022001" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.106.022001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.022001" target="_blank" >10.1103/PhysRevLett.106.022001</a>

Result language
angličtina
Original language name
Determination of the Width of the Top Quark
Original language description
We extract the total width of the top quark, Gamma(t), from the partial decay width Gamma(t -} Wb) measured using the t-channel cross section for single top-quark production and from the branching fraction B(t -} Wb) measured in t (t) over bar t events using up to 2.3 fb(-1) of integrated luminosity collected by the D0 Collaboration at the Tevatron p (p) over bar Collider. The result is Gamma(t) = 1.99(-0.55)(+0.69) GeV, which translates to a top-quark lifetime of tau(t) = (3.3-(+1.3)(0.9)) x 10(-25) s.Assuming a high mass fourth generation b'' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on vertical bar V(tb'')vertical bar { 0.63 at 95% C.L.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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