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Leptonic decays of the D(s) meson

ALEPH Collaboration, The and Heister, A. and Bouhova-Thacker, Evelina and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger (2002) Leptonic decays of the D(s) meson. Physics Letters B, 528 (1-2). pp. 1-18. ISSN 0370-2693

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Abstract

The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e− collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds→τν decays with or , and the other optimized for Ds→μν decays. The results are used to evaluate the Ds decay constant, within the Standard Model: fDs=[285±19(stat)±40(syst)] MeV.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63917
Deposited By: ep_importer_pure
Deposited On: 03 May 2013 10:21
Refereed?: Yes
Published?: Published
Last Modified: 19 Nov 2017 12:15
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63917

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