Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Leptonic decays of the D(s) meson
AU - ALEPH Collaboration, The
AU - Heister, A.
AU - Bouhova-Thacker, Evelina
AU - Bowdery, Christopher
AU - Finch, Alexander
AU - Foster, Frank
AU - Hughes, Gareth
AU - Jones, Roger
PY - 2002/2/28
Y1 - 2002/2/28
N2 - 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.
AB - 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.
U2 - 10.1016/S0370-2693(02)01212-1
DO - 10.1016/S0370-2693(02)01212-1
M3 - Journal article
VL - 528
SP - 1
EP - 18
JO - Physics Letters B
JF - Physics Letters B
SN - 0370-2693
IS - 1-2
ER -