A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino

The purely leptonic decay D<sub>s</sub> &rarr; &mu; &nu; is studied in a sample of four million hadronic Z decays collected in 1991- 1995 with the ALEPH detector at LEP. A linear discriminant analysis and a kinematic fit to the missing neutrino four-momentum are used to measu...

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Detalles Bibliográficos
Autor principal: Pütz, J
Lenguaje:eng
Publicado: Washington U. 1999
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/439664
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author Pütz, J
author_facet Pütz, J
author_sort Pütz, J
collection CERN
description The purely leptonic decay D<sub>s</sub> &rarr; &mu; &nu; is studied in a sample of four million hadronic Z decays collected in 1991- 1995 with the ALEPH detector at LEP. A linear discriminant analysis and a kinematic fit to the missing neutrino four-momentum are used to measure the branching fraction &beta; (D<sub>s</sub> &rarr; &mu; &nu; ) = (0.65 &plusmn; 0.085 [stat] &plusmn; 0.134 [sys] &plusmn; 0.157 [bf])%, where the last uncertainty is from the branching fraction &beta; (D<sub>s</sub> &rarr; &mu; &nu; ). Within the Standard Model, this result corresponds to <italic><super>f</super></italic>D<sub> s</sub> = (285 &plusmn; 19 [stat] &plusmn; 29 [sys] &plusmn; 41 [bf)] MeV. --- 26 --- AN
id cern-439664
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
publisher Washington U.
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spelling cern-4396642019-09-30T06:29:59Zhttp://cds.cern.ch/record/439664engPütz, JA Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A NeutrinoParticle Physics - ExperimentThe purely leptonic decay D<sub>s</sub> &rarr; &mu; &nu; is studied in a sample of four million hadronic Z decays collected in 1991- 1995 with the ALEPH detector at LEP. A linear discriminant analysis and a kinematic fit to the missing neutrino four-momentum are used to measure the branching fraction &beta; (D<sub>s</sub> &rarr; &mu; &nu; ) = (0.65 &plusmn; 0.085 [stat] &plusmn; 0.134 [sys] &plusmn; 0.157 [bf])%, where the last uncertainty is from the branching fraction &beta; (D<sub>s</sub> &rarr; &mu; &nu; ). Within the Standard Model, this result corresponds to <italic><super>f</super></italic>D<sub> s</sub> = (285 &plusmn; 19 [stat] &plusmn; 29 [sys] &plusmn; 41 [bf)] MeV. --- 26 --- ANWashington U.oai:cds.cern.ch:4396641999
spellingShingle Particle Physics - Experiment
Pütz, J
A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title_full A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title_fullStr A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title_full_unstemmed A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title_short A Measurement Of The Branching Fraction Of The Ds Meson To A Muon And A Neutrino
title_sort measurement of the branching fraction of the ds meson to a muon and a neutrino
topic Particle Physics - Experiment
url http://cds.cern.ch/record/439664
work_keys_str_mv AT putzj ameasurementofthebranchingfractionofthedsmesontoamuonandaneutrino
AT putzj measurementofthebranchingfractionofthedsmesontoamuonandaneutrino

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