3 research outputs found

    Measurement of the tbartt bar{t} Production Cross Section in pbarpp bar{p} collisions at sqrtssqrt{s} = 1.96-TeV using Lepton + Jets Events with Jet Probability b−b^- tagging

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    Performance of the ALEPH detector at LEP

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    The performance of the ALEPH detector at the LEP e+e− collider is reviewed. The accuracy of the tracking detectors to measure the impact parameter and momentum of charged tracks is specified. Calorimeters are used to measure photons and neutral hadrons, and the accuracy obtained in energy and angle is given. An essential property of the detector is its ability to identify particles; the performance in identification of electrons, muons, neutrinos (from missing energy), charged hadrons, π0's and V0's is described
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