5 research outputs found

    Erratum: Measurement of the inclusive jet cross section using the kT algorithm in pp̄ collisions at s=1.96TeV with the CDF II detector (Physical Review D - Particles, Fields, Gravitation and Cosmology (2007) 75, (092006))

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    Measurement of the inclusive jet cross section using the k(T) algorithm in p(p)over-bar collisions at root s=1.96 TeV with the CDF II detector

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    We report on measurements of the inclusive jet production cross section as a function of the jet transverse momentum in p (p) over bar collisions at root s=1.96 TeV, using the k(T) algorithm and a data sample corresponding to 1.0 fb(-1) collected with the Collider Detector at Fermilab in run II. The measurements are carried out in five different jet rapidity regions with vertical bar y(jet)vertical bar \u3c 2.1 and transverse momentum in the range 54 \u3c p(T)(jet)\u3c 700 GeV/c. Next-to-leading order perturbative QCD predictions are in good agreement with the measured cross sections

    Search for chargino-neutralino production in p(p)over-bar collisions at root s=1.96 TeV

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    We present a search for associated production of the chargino and neutralino supersymmetric particles using up to 1.1 fb(-1) of integrated luminosity collected by the CDF II experiment at the Tevatron p (p) over bar collider at root s=1.96 TeV. We analyze events with a large transverse momentum imbalance and either three charged leptons or two charged leptons of the same electric charge. The numbers of observed events are consistent with standard model expectations. Upper limits on the production cross section are derived in different theoretical models

    Observation of WZ production

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    We report the first observation of the associated production of a W boson and a Z boson. This result is based on 1.1 fb(-1) of integrated luminosity from p (p) over bar collisions at root s=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We observe 16 WZ candidates passing our event selection with an expected background of 2.7 +/- 0.4 events. A fit to the missing transverse energy distribution indicates an excess of events compared to the background expectation corresponding to a significance equivalent to 6 standard deviations. The measured cross section is sigma(p (p) over bar -> WZ)=5.0(-1.6)(+1.8) pb, consistent with the standard model expectation
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