Production of WZ events in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV and limits on anomalous WWZ couplings - INSPIRE

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Production of WZ events in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV and limits on anomalous WWZ couplings

D0

Collaboration

Apr, 2005

7 pages

Published in:

Phys.Rev.Lett. 95 (2005) 141802

e-Print:

hep-ex/0504019 [hep-ex]

DOI:

10.1103/PhysRevLett.95.141802

PDG:

\mathit g{}^{{{\mathit Z}}}_{1}

Report number:

FERMILAB-PUB-05-061-E

Experiments:

FNAL-E-0823

View in:

reference search36 citations

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Abstract:

We present results from a search for WZ production with subsequent decay to l nu l'-bar l' (l and l'=electron or muon) using 0.30 fb^(-1) of data collected by the DO experiment between 2002 and 2004 at the 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 (+3.8 -2.6) 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.

Note:

submitted to Phys. Rev. Lett Report-no: FERMILAB-PUB-05/061-E

13.85.Rm
14.70.Fm
14.70.Hp
13.40.Em
intermediate boson production
proton-proton inclusive interactions
high-energy elementary particle interactions
intermediate boson interactions
leptonic decays
W bosons

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