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Study of the fragmentation of b quarks into B mesons at the Z peak
A study of the fragmentation of b quarks into B mesons is presented. The analysis makes use of the statistics collected by the ALEPH experiment around the Z peak during the years 1991-1995. A semi- exclusive reconstruction of B to l nu D(*) decays is performed, by combining lepton candidates with fu...
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Lenguaje: | eng |
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2000
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Acceso en línea: | http://cds.cern.ch/record/494676 |
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author | CERN. Geneva |
author_facet | CERN. Geneva |
author_sort | CERN. Geneva |
collection | CERN |
description | A study of the fragmentation of b quarks into B mesons is presented. The analysis makes use of the statistics collected by the ALEPH experiment around the Z peak during the years 1991-1995. A semi- exclusive reconstruction of B to l nu D(*) decays is performed, by combining lepton candidates with fully reconstructed D(*) mesons, while the neutrino energy is estimated from the missing energy of the event. The mean reduced energy of the weakly decaying and leading B meson is found to be <x/sub b//sup wd/>=0.7198+or-0.0045(stat) +or-0.0053(syst) and <x/sub b//sup L/>=0.7394+or-0.0045(stat) +or-0.0053(syst) respectively. (4 refs). |
id | cern-494676 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2000 |
record_format | invenio |
spelling | cern-4946762022-01-27T08:58:10Zhttp://cds.cern.ch/record/494676engCERN. GenevaStudy of the fragmentation of b quarks into B mesons at the Z peakParticle Physics - ExperimentA study of the fragmentation of b quarks into B mesons is presented. The analysis makes use of the statistics collected by the ALEPH experiment around the Z peak during the years 1991-1995. A semi- exclusive reconstruction of B to l nu D(*) decays is performed, by combining lepton candidates with fully reconstructed D(*) mesons, while the neutrino energy is estimated from the missing energy of the event. The mean reduced energy of the weakly decaying and leading B meson is found to be <x/sub b//sup wd/>=0.7198+or-0.0045(stat) +or-0.0053(syst) and <x/sub b//sup L/>=0.7394+or-0.0045(stat) +or-0.0053(syst) respectively. (4 refs).CERN-ALEPH-2001-039oai:cds.cern.ch:4946762000 |
spellingShingle | Particle Physics - Experiment CERN. Geneva Study of the fragmentation of b quarks into B mesons at the Z peak |
title | Study of the fragmentation of b quarks into B mesons at the Z peak |
title_full | Study of the fragmentation of b quarks into B mesons at the Z peak |
title_fullStr | Study of the fragmentation of b quarks into B mesons at the Z peak |
title_full_unstemmed | Study of the fragmentation of b quarks into B mesons at the Z peak |
title_short | Study of the fragmentation of b quarks into B mesons at the Z peak |
title_sort | study of the fragmentation of b quarks into b mesons at the z peak |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/494676 |
work_keys_str_mv | AT cerngeneva studyofthefragmentationofbquarksintobmesonsatthezpeak |