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Showing 1 to 7 of 7 for “"OPAL detector"”.
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Four-Fermion production at LEP using the OPAL detector
In 1997 LEP reached energies at which the production of heavy <br>gauge pairs of bosons was possible. Over 650 pb$^{-1}$ of <br>data have been analysed at centre-of-mass energies between 183 and 209 GeV. <br>Four-fermion final states stemming from decays of the Z$gamma^*$ into <br>$ <br>m q …
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Analysis of Excited B Mesons with the OPAL Detector at LEP
… million hadronic <br>Z^0 decays recorded by the OPAL detector on and near to the Z^0 resonance, a sample of more than 570,000 inclusively reconstructed <br>B mesons is selected making use of improved tagging and reconstruction methods. B* mesons are reconstructed using the decay <br>B* -> B …
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Measurement of Single W Production and Triple Gauge Boson Couplings in e+e- Collisions at sqrt(s)=161-189 GeV
… collected between 1996 and <br>1998 with the OPAL detector at LEP2. A sample of 92 events is selected in the <br>data, for a MC prediction of 87.6+/-3.7 events. The selected events are used to <br>measure the parameters describing the triple gauge boson vertex gWW: <br>kg=1.15+0.18/-0.20 and …
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Bestimmung der b-Quarkmasse an der Z-Massenskala
… decays of the Z boson recorded in 1994 with the OPAL detector at LEP b quark events were selected using the long lifetime of b flavoured hadrons. Different observables for the determination of the b quark mass were studied. Jetrates were found to be best suited. The 3-jet rates in b quark events …
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Suche nach R-paritätsverletzenden Zerfällen supersymmetrischer Teilchen in Endzuständen mit Jets und Leptonen mit dem OPAL-Detektor bei LEP
Von allen in den Jahren 1998 bis 2000 mit dem OPAL-Detektor am <br>e+e--Speicherring LEP am CERN aufgenommenen Daten wurden jene Ereignisse untersucht, in <br>denen geladene Leptonen und hadronische Jets nachgewiesen wurden. Dabei wurde nach Anzeichen für spezielle Zerfälle neuer Teilchen gesucht. …