We report two complementary measurements of the WW + WZ cross section in the final state consisting of an electron or muon, missing transverse energy, and jets, performed using p (p) over bar collision data at root s = 1.96 TeV collected by the CDF II detector. The first method uses the dijet invariant mass distribution while the second more sensitive method uses matrix-element calculations. The result from the second method has a signal significance of 5.4 sigma and is the first observation of WW + WZ production using this signature. Combining the results gives sigma(WW+WZ) = (16.0 +/- 3.3) pb, in agreement with the standard model prediction.

T., A., J., A., B. A., G., S., A., D., A., A., A., et al. (2010). Measurement of the WW + WZ Production Cross Section Using the lepton plus jets Final State at CDF II. PHYSICAL REVIEW LETTERS, 104, 101801-1-101801-8 [10.1103/PhysRevLett.104.101801].

Measurement of the WW + WZ Production Cross Section Using the lepton plus jets Final State at CDF II

CIOCCI, MARIA AGNESE;
2010

Abstract

We report two complementary measurements of the WW + WZ cross section in the final state consisting of an electron or muon, missing transverse energy, and jets, performed using p (p) over bar collision data at root s = 1.96 TeV collected by the CDF II detector. The first method uses the dijet invariant mass distribution while the second more sensitive method uses matrix-element calculations. The result from the second method has a signal significance of 5.4 sigma and is the first observation of WW + WZ production using this signature. Combining the results gives sigma(WW+WZ) = (16.0 +/- 3.3) pb, in agreement with the standard model prediction.
T., A., J., A., B. A., G., S., A., D., A., A., A., et al. (2010). Measurement of the WW + WZ Production Cross Section Using the lepton plus jets Final State at CDF II. PHYSICAL REVIEW LETTERS, 104, 101801-1-101801-8 [10.1103/PhysRevLett.104.101801].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/35595
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