Measurement of the t-channel single top-quark production cross section in pp collisions at root s=7 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00202662" target="_blank" >RIV/68407700:21220/12:00202662 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/12:00202662 RIV/68407700:21260/12:00202662 RIV/68407700:21670/12:00202662 RIV/00216208:11320/12:10130647
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2012.09.031" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2012.09.031</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2012.09.031" target="_blank" >10.1016/j.physletb.2012.09.031</a>

Result language
angličtina
Original language name
Measurement of the t-channel single top-quark production cross section in pp collisions at root s=7 TeV with the ATLAS detector
Original language description
We report a measurement of the cross section of single top-quark production in the t-channel using 1.04 fb(-1) of pp collision data at root s = 7 TeV recorded with the ATLAS detector at the LHC. Selected events feature one electron or muon, missing transverse momentum, and two or three jets, exactly one of them identified as originating from a b quark. The cross section is measured by fitting the distribution of a multivariate discriminant constructed with a neural network, yielding sigma(t) = 83 +/- 4(stat.)(-19)(+20) (syst.) pb, which is in good agreement with the prediction of the Standard Model. Using the ratio of the measured to the theoretically predicted cross section and assuming that the top-quark-related CKM matrix elements obey the relationvertical bar V-tb vertical bar >> vertical bar V-ts vertical bar, vertical bar V-td vertical bar, the coupling strength at the W-t-b vertex is determined to be vertical bar V-tb vertical bar = 1.13(-0.13)(+0.14). If it is assumed that ve
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
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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