HAL : in2p3-00617694, version 1
 arXiv : 1108.2060
 Physical Review D 85 (2012) 012002
 Search for WZ+ZZ production with MET + jets with b enhancement at sqrt(s) = 1.96 TeV
 CDF Collaboration(s)
 (2012)
 Diboson production ($WW+WZ+ZZ$) has been observed at the Tevatron in hadronic decay modes dominated by the $WW$ process. This paper describes the measurement of the cross section of $WZ$ and $ZZ$ events in final states with large $\mett$ and using $b$-jet identification as a tool to suppress $WW$ contributions. Due to the limited energy resolution, we cannot distinguish between partially hadronic decays of $WZ$ and $ZZ$, and we measure the sum of these processes. The number of signal events is extracted using a simultaneous fit to the invariant mass distribution of the two jets for events with two $b$-jet candidates and events without two $b$-jet candidates. We measure a cross section $\sigma(p\bar{p}\to WZ,ZZ) = 5.8^{+3.6}_{-3.0}$ pb, in agreement with the standard model.
 équipe(s) de recherche : APC - AHE
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1108.2060
 in2p3-00617694, version 1 http://hal.in2p3.fr/in2p3-00617694 oai:hal.in2p3.fr:in2p3-00617694 Contributeur : Swarna Bassava <> Soumis le : Mardi 30 Août 2011, 11:32:25 Dernière modification le : Mardi 18 Septembre 2012, 22:23:48