22 research outputs found

    A search for doubly charged higgs production in z0 decays

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    Contains fulltext : 124394.pdf (preprint version ) (Open Access

    Coarse-grained deltas approaching shallow-water canyon heads:A case study from the Lower Pleistocene Messina Strait, Southern Italy

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    Search for pair produced stable singly charged heavy particles in Z0 decays

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    Search for the minimal standard model Higgs boson in e+ e- collisions at LEP

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    A Search for scalar leptoquarks in Z0 decays

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    Contains fulltext : 125110.pdf (preprint version ) (Open Access

    A Measurement of the electroweak couplings of up and down type quarks using final state photons in hadronic z0 decays

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    The production rate of final state photons in hadronic Z0 decays is measured as a function of ycut = Mij2/Ecm2 the jet resolution parameter and minimum mass of the photon-jet system. Good agreement with the theoretical expectation from an O(ααs) matrix element calculation is observed. Comparing the measurement and the prediction for ycut = 0.06, where the experimental systematic and statistical errors and the theoretical uncertainties are small, and combining this measurement with our result for the hadronic width of the Z0, we derived partial widths of up and down type quarks to be Γu = 333 ± 55 ± 72 MeV and Γd = 358 ± 37 ± 48 MeV in agreement with the standard model expectations. We compare our yield with the QCD shower models including photon radiation. At low γcut JETSET underestimates the photon yield, and ARIADNE describes the production rate well

    A Model independent observation of the string effect using quark tagging at LEP

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    A Study of heavy flavor production using muons in hadronic Z0 decays

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    Contains fulltext : 125113.pdf (preprint version ) (Open Access

    A Study of coherence of soft gluons in hadron jets

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    Intermittency in hadronic decays of the Z0

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    Contains fulltext : 125116.pdf (preprint version ) (Open Access
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