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Production of WZ events in pp(-) collisions at root s=1.96 TeV and limits on anomalous WWZ couplings
Baringer, Philip S. Bean, Alice Christofek, L. Coppage, Don Gardner, J. Hensel, Carsten Jabeen, S. Wilson, Graham Wallace
Baringer, Philip S.
Bean, Alice
Christofek, L.
Coppage, Don
Gardner, J.
Hensel, Carsten
Jabeen, S.
Wilson, Graham Wallace
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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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2005-09
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AMERICAN PHYSICAL SOC
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Abazov, VM; Abbott, B, et al. Production of WZ events in pp(-) collisions at root s=1.96 TeV and limits on anomalous WWZ couplings. PHYSICAL REVIEW LETTERS. Septrmber 2005. 95(14)