Measurements of WW and WZ production in W + jets final states in pp? collisions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00380019" target="_blank" >RIV/68378271:_____/12:00380019 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.108.181803" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.108.181803</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.108.181803" target="_blank" >10.1103/PhysRevLett.108.181803</a>

Result language
angličtina
Original language name
Measurements of WW and WZ production in W + jets final states in pp? collisions
Original language description
We study WW and WZ production with l?qq (l=e,?) final states using data collected by the D0 detector at the Fermilab Tevatron Collider corresponding to 4.3 fb^-1 of integrated luminosity from p-pbar collisions at sqrt{s}=1.96 TeV. Assuming the ratio between the production cross sections ?(WW) and ?(WZ) as predicted by the standard model, we measure the total WV (V=W,Z) cross section to be ?(WV)=19.6+3.23.0 pb, and reject the background-only hypothesis at a level of 7.9 standard deviations. We also use b-jet discrimination to separate the WZ component from the dominant WW component. Simultaneously fitting WW and WZ contributions, we measure ?(WW)=15.9+3.73.2 pb and ?(WZ)=3.3+4.13.3 pb, which is consistent with the standard model predictions.
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/LA08047" target="_blank" >LA08047: Collaboration on the D0 Experiment at FNAL, U.S.A.</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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