Measurements of the top-quark mass and the t(t)over-bar cross section in the hadronic tau plus jets decay channel at s=1.96 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00388738" target="_blank" >RIV/68378271:_____/12:00388738 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.109.192001" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.109.192001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.109.192001" target="_blank" >10.1103/PhysRevLett.109.192001</a>

Result language
angličtina
Original language name
Measurements of the top-quark mass and the t(t)over-bar cross section in the hadronic tau plus jets decay channel at s=1.96 TeV
Original language description
We present the first direct measurement of the top-quark mass using $/ttbar$ events decaying in the hadronic ? + jets decay channel. Using data corresponding to an integrated luminosity of 2.2 fb$^{-1}$ collected by the CDF II detector in $p/bar{p}$ collisions at $/sqrt{s}=1.96 TeV$ at the Fermilab Tevatron, we measure the $t/bar{t}$ cross section, $/sigma_{t/bar{t}}$, and the top-quark mass, M$_{top}$. We extract M$_{top}$ from a likelihood based on per-event probabilities calculated with leading-ordersignal and background matrix elements. We measure $/sigma_{t/bar{t}} = 8.8 /pm 3.3 (/mathrm{stat}) /pm 2.2 (/mathrm{syst}) /mathrm{pb}$ and M$_{top} = 172.7 /pm 9.3 (/mathrm{stat}) /pm 3.7 (/mathrm{syst}) GeV/c^2$.
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
<a href="/en/project/LC527" target="_blank" >LC527: Center for Particle Physics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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