Evidence of $WW+WZ$ production with lepton + jets final states in proton-antiproton collisions at $\sqrt{s}$ =1.96 TeV

Tanasijczuk, Andres Jorge;D0;et.al.
(2009) Physical Review Letters — Vol. 102 (2009)

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We present the first evidence of WW+WZ production with lepton+jets final states at a hadron collider. The data correspond to 1.07 inverse femtobarns of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider in proton-antiproton collisions at sqrt(s)=1.96 TeV. The observed cross section for WW+WZ production is 20.2 +/- 4.5 pb, consistent with the SM prediction of 16.1 +/- 0.9 pb. The probability for background fluctuations to produce an excess equal to or larger than that observed is estimated to be 5.4e-6, corresponding to a significance of 4.4 standard deviations.
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Tanasijczuk, A. J., D0, & et al. (2009). Evidence of $WW+WZ$ production with lepton + jets final states in proton-antiproton collisions at $\sqrt{s}$ =1.96 TeV. Physical Review Letters, 102. https://doi.org/10.1103/PhysRevLett.102.161801 (Original work published 2009)