Evidence of WW and WZ Production with lepton+jets Final States in pp Collisions at {radical}(s)=1.96 TeV

Journal Article · Fri Apr 24 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.161801· OSTI ID:21316630

Abazov, V M; Alexeev, G D; Kharzheev, Y N; Malyshev, V L; Tokmenin, V V; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Hossain, S; Jain, S; Rominsky, M; Severini, H; Skubic, P; Strauss, M ^[2]; Abolins, M; Benitez, J A; Brock, R; Dyer, J; Edmunds, D ^[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)

We present first evidence for WW+WZ production in lepton+jets final states at a hadron collider. The data correspond to 1.07 fb{sup -1} of integrated luminosity collected with the D0 detector at the Fermilab Tevatron in pp collisions at {radical}(s)=1.96 TeV. The observed cross section for WW+WZ production is 20.2{+-}4.5 pb, consistent with the standard model and more precise than previous measurements in fully leptonic final states. The probability that background fluctuations alone produce this excess is <5.4x10{sup -6}, which corresponds to a significance of 4.4 standard deviations.

• OSTI ID: 21316630
• Journal Information: Physical Review Letters, Vol. 102, Issue 16; Other Information: DOI: 10.1103/PhysRevLett.102.161801; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
FERMILAB TEVATRON
HADRONS
LEPTONS
LUMINOSITY
PROBABILITY
PROTON-PROTON INTERACTIONS
STANDARD MODEL
TEV RANGE 01-10