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A Measurement of R(b) using a lifetime mass tag

Barate, R. and Finch, Alexander (1997) A Measurement of R(b) using a lifetime mass tag. Physics Letters B, 401 (1-2). pp. 150-162. ISSN 0370-2693

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Abstract

ALEPH's published measurement of using a lifetime tag is updated using the full LEP 1 data sample. Considerable effort has been devoted to understanding systematic effects. Charm background is better controlled by combining the lifetime tag with a tag based on the hadron mass difference. Furthermore, the algorithm used to reconstruct the event primary vertex is designed so as to reduce correlations between the two hemispheres of an event. The value of Rb is measured to be 0.2167 ± 0.0011(stat) ± 0.0013(syst).

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 64020
Deposited By: ep_importer_pure
Deposited On: 14 May 2013 15:18
Refereed?: Yes
Published?: Published
Last Modified: 21 Sep 2017 05:35
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/64020

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