jessica levêque rencontres de moriond qcd 2006 page 1 measurement of top quark properties at the...
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DESCRIPTION
Jessica Levêque Rencontres de Moriond QCD 2006 Page 3 Top Quark at TeVatron At the TeVatron, the top quark is mainly produced in pairs via strong interaction. In the following, we will assume : = 6.8 ± 0.8 pb [*] B(t→Wb) = 100% m top =175 GeV/c 2 85% 15% [*] Phys. Rev. D 68, The top quark properties are measured in events where at least one of the W bosons decays into leptons (e, , → e, ) Large branching fraction ~ 40% Limited physics background Most of the analyses presented here use b-jets identification to increase the fraction of signal in the selected data samples : cut on the decay length of the secondary vertex found in jets