34 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

    The Single-Stranded DNA Phages

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    Measurement of the tau lifetime

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    Contains fulltext : 124378.pdf (preprint version ) (Open Access

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

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    A SEARCH FOR ACOPLANAR PAIRS OF LEPTONS OR JETS IN Z0 DECAYS: MASS LIMITS ON SUPERSYMMETRIC PARTICLES

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    MEASUREMENT OF THE Z0 MASS AND WIDTH WITH THE OPAL DETECTOR AT LEP

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    A STUDY OF JET PRODUCTION RATES AND A TEST OF QCD ON THE Z0 RESONANCE

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    A DIRECT SEARCH FOR NEW CHARGED HEAVY LEPTONS AT LEP

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    This is the post-print version of the Article - Copyright @ 1990 ElsevierResults are presented from a search for a new charged heavy lepton in e+e− annihilation. The data were taken with the OPAL detector at LEP during a scan of the Z0 resonance. Two independent search techniques were used, one looking for events with large missing energy and missing momentum transverse to the beam, and the other for events with isolated energetic leptons. Two candidate events, consistent with expected background, were found in the first search; none was found in the second. These results allow the exclusion at the 95% confidence level of a charged heavy lepton of mass less than 44.3 GeV/c2 if it is assumed to have a massless neutrino partner. Limits are also presented for the case of a massive neutrino.This study is supported by The Bundesministerium f'tir Forschung und Technologie, FRG, The Department of Energy, USA, The Institut de Recherche Fondamentale du Commissariat a l'Energie Atomique, The Israeli Ministry of Science, The Minerva Gesellschaft, The National Science Foundation, USA, The Natural Sciences and Engineering Research Council, Canada, The Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, The Science and Engineering Research Council, UK and The A.P. Sloan Foundation

    SEARCH FOR EXCITED LEPTONS AT LEP

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    A SEARCH FOR TECHNIPIONS AND CHARGED HIGGS BOSONS AT LEP

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