Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-07-03
Phys.Rev.Lett.87:231803,2001
Physics
High Energy Physics
High Energy Physics - Experiment
2 figures
Scientific paper
10.1103/PhysRevLett.87.231803
We present searches for quark-lepton compositeness and a heavy W' boson at high electron-neutrino transverse mass. We use ~110/pb of data collected in p-pbar collisions at sqrt(s) = 1.8 TeV by the CDF collaboration during 1992--95. The data are consistent with standard model expectations. Limits are set on the quark-lepton compositeness scale Lambda and the ratio of partial cross sections sigma (W' -> e nu) / sigma (W -> e nu). The cross section ratio is used to obtain a lower limit on the mass of a W' boson with standard model couplings. We exclude Lambda < 2.81 TeV and a W' boson with mass below 754 GeV/c^2 at the 95% confidence level. We combine the W' mass limit with our previously published limit obtained using the muon channel, to exclude a W' boson with mass below 786 GeV/c^2 at the 95% confidence level.
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