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Heavy quark tagging with leptons in the ALEPH detector

Buskulic, D. and Finch, Alexander (1994) Heavy quark tagging with leptons in the ALEPH detector. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 346 (3). pp. 461-475. ISSN 0168-9002

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Abstract

Semileptonic decays of heavy quarks yield prompt leptons which can be used to identify events resulting from the decays of the Z into c and b pairs. The procedures adopted to obtain clean samples of inclusive leptons with the ALEPH detector are described. Electron identification makes use of ionization measurements in the tracking system of ALEPH and the shape of showers in the electromagnetic calorimeter. Muons are identified using the tracking capabilities of the hadron calorimeter, together with the muon chamber information. Distinguishing the sources of prompt lepton production requires the determination of the lepton's transverse momentum with respect to the parent hadron's flight direction. As the latter is not directly measurable, the results of an algorithm are presented which uses the information produced by the ALEPH detector to achieve the most effective axis from which the transverse momentum should be measured.

Item Type: Article
Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 64094
Deposited By: ep_importer_pure
Deposited On: 08 May 2013 16:37
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 14:06
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/64094

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