Abazov, VM;
Abbott, B;
Abolins, M;
Acharya, BS;
Adams, M;
Adams, T;
Agelou, M;
... D0 Collaborat; + view all
(2005)
Production of WZ events in pp(-) collisions at root s=1.96 TeV and limits on anomalous WWZ couplings.
PHYS REV LETT
, 95
(14)
, Article 141802. 10.1103/PhysRevLett.95.141802.
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Abstract
We present results from a search for WZ production with subsequent decay to l nu l'(l) over bar'(l and l' = e or mu) using 0.30 fb(-1) of data collected by the D0 experiment between 2002 and 2004 at the Fermilab Tevatron. Three events with WZ decay characteristics are observed. With an estimated background of 0.71 +/- 0.08 events, we measure the WZ production cross section to be 4.5(-2.6)(+3.8) pb, with a 95% C.L. upper limit of 13.3 pb. The 95% C.L. limits for anomalous WWZ couplings are found to be -2.0 <Delta kappa(Z)< 2.4 for form factor scale Lambda=1 TeV, and -0.48 <lambda(Z)< 0.48 and -0.49 <Delta g(1)(Z)< 0.66 for Lambda=1.5 TeV.
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