Production of WZ Events in pp Collisions at {radical}(s)=1.96 TeV and Limits on Anomalous WWZ Couplings

Journal Article · Fri Sep 30 04:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.141802· OSTI ID:20696515

Abazov, V M; Alexeev, G D; Kalinin, A M; Kharzheev, Y M; Malyshev, V L; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Hall, I; Jain, S; Kopal, M; Pompos, A; Severini, H; Skubic, P; Strauss, M; Zhang, X ^[2]; Abolins, M; Brock, R; Dyer, J ^[3]

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
3. Michigan State University, East Lansing, Michigan 48824 (United States); and others

We present results from a search for WZ production with subsequent decay to l{nu}l{sup '}l{sup '} (l and l{sup '}=e or {mu}) using 0.30 fb{sup -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{sub -2.6}{sup +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}{sub Z}<2.4 for form factor scale {lambda}=1 TeV, and -0.48<{lambda}{sub Z}<0.48 and -0.49<{delta}g{sub 1}{sup Z}<0.66 for {lambda}=1.5 TeV.

• OSTI ID: 20696515
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
FERMILAB TEVATRON
FORM FACTORS
INCLUSIVE INTERACTIONS
LEPTONIC DECAY
PARTICLE PRODUCTION
PROTON-PROTON INTERACTIONS
TEV RANGE 01-10
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS