6 research outputs found

    Search for a neutral Higgs boson decaying to a W boson pair in p(p)over-bar collisions at root s=1.96 TeV

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    We present the results of a search for standard model Higgs boson production with decay to WW*, identified through the leptonic final states e(+)e(-)(nu) over bar nu,e(+/-)mu(-/+)(nu) over bar nu and mu(+)mu(-)(nu) over bar nu. This search uses 360 pb(-1) of data collected from p (p) over bar collisions at root s=1.96 TeV by the upgraded Collider Detector at Fermilab (CDF II). We observe no signal excess and set 95% confidence level upper limits on the production cross section times branching ratio for the Higgs boson to WW* or any new scalar particle with similar decay products. These upper limits range from 5.5 to 3.2 pb for Higgs boson masses between 120 and 200 GeV/c(2)

    First flavor-tagged determination of bounds on mixing-induced CP violation in B-s(0)-> J/psi phi decays

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    A search for t -> tau nu q in t(t)over-bar production

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    We present a search for t (t) over bar events with a tau lepton in the final state. The data sample corresponds to an integrated luminosity of 194 pb(-1) collected with the CDF II detector from p (p) over bar collisions at a center of mass energy of 1.96 TeV. We observe two events with an expected signal of 1.0 +/- 0.2 events and a background of 1.3 +/- 0.3 events. We determine a 95% confidence level upper limit on r(tau), the ratio of the measured rate of t -> tau nu q to the expectation, of 5.2

    Direct search for Dirac magnetic monopoles in pbarppbar{p} collisions at sqrts=1.96sqrt{s} = 1.96 TeV

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    Search for neutral MSSM Higgs bosons decaying to tau pairs in pbarppbar{p} collisions at sqrts=1.96sqrt{s} = 1.96 TeV

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    Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 20 fb−1 of √s= 8 TeV proton-proton collision data with the ATLAS detector

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    © 2014, The Author(s). A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, at least one hadronically decaying tau lepton and zero or one additional light leptons (electron/muon), has been performed using 20.3fb−1of proton-proton collision data at √ s= 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed in the various signal regions and 95% confidence level upper limits on the visible cross section for new phenomena are set. The results of the analysis are interpreted in several SUSY scenarios, significantly extending previous limits obtained in the same final states. In the framework of minimal gauge-mediated SUSY breaking models, values of the SUSY breaking scale Λ below 63 TeV are excluded, independently of tan β. Exclusion limits are also derived for an mSUGRA/CMSSM model, in both the R-parity-conserving and R-parity-violating case. A further interpretation is presented in a framework of natural gauge mediation, in which the gluino is assumed to be the only light coloured sparticle and gluino masses below 1090 GeV are excluded
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