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 s**(1/2) = 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.

Aaltonen, T., Alvarez Gonzalezv, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2010). Measurement of the WW + WZ Production Cross Section using a Matrix Element Technique in Lepton + Jets Events. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 82, 112001-1-112001-15 [10.1103/PhysRevD.82.112001].

Measurement of the WW + WZ Production Cross Section using a Matrix Element Technique in Lepton + Jets Events

CASTRO, ANDREA;DENINNO, MARIA MADDALENA;A. DI CANTO;MARGAROLI, FABRIZIO;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2010

Abstract

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 s**(1/2) = 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.
2010
Aaltonen, T., Alvarez Gonzalezv, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2010). Measurement of the WW + WZ Production Cross Section using a Matrix Element Technique in Lepton + Jets Events. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 82, 112001-1-112001-15 [10.1103/PhysRevD.82.112001].
Aaltonen, T.; Alvarez Gonzalezv, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Apresyan, A.; Arisaw...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/97374
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