We present a measurement of the WW + WZ production cross section observed in a final state consisting of an identified electron or muon, two jets, and missing transverse energy. The measurement is carried out in a data sample corresponding to up to 4.6 fb(-1) of integrated luminosity at root s = 1.96 TeV collected by the CDF II detector. Matrix element calculations are used to separate the diboson signal from the large backgrounds. The WW + WZ cross section is measured to be 17.4 +/- 3.3 pb in agreement with standard model predictions. A fit to the dijet invariant mass spectrum yields a compatible cross section measurement.
Titolo: | Measurement of the WW plus WZ production cross section using a matrix element technique in lepton plus jets events RID G-1087-2011 RID E-4473-2011 | |
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Data di pubblicazione: | 2010 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.82.112001 | |
Handle: | http://hdl.handle.net/11384/3785 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |