Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector

An investigation of CP violation is performed using a total of 24 candidates for B/sup 0/ to J/ psi K/sub S//sup 0/ decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z/sup 0/ decays recorded by the OPAL detector at LEP. An analysis procedure, involving technique...

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Detalles Bibliográficos
Autor principal: Barberio, E
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/503749
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author Barberio, E
author_facet Barberio, E
author_sort Barberio, E
collection CERN
description An investigation of CP violation is performed using a total of 24 candidates for B/sup 0/ to J/ psi K/sub S//sup 0/ decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z/sup 0/ decays recorded by the OPAL detector at LEP. An analysis procedure, involving techniques to reconstruct the proper decay times and tag the produced b-flavours, B/sup 0/ of B/sup 0/, is developed to allow a first direct study of the time dependent CP asymmetry that, in the standard model, is sin 2 beta . The result is sin 2 beta =3.2/sub -2.0//sup +1.8/+or-0.5. (6 refs).
id cern-503749
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-5037492019-09-30T06:29:59Zhttp://cds.cern.ch/record/503749engBarberio, EInvestigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detectorParticle Physics - ExperimentAn investigation of CP violation is performed using a total of 24 candidates for B/sup 0/ to J/ psi K/sub S//sup 0/ decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z/sup 0/ decays recorded by the OPAL detector at LEP. An analysis procedure, involving techniques to reconstruct the proper decay times and tag the produced b-flavours, B/sup 0/ of B/sup 0/, is developed to allow a first direct study of the time dependent CP asymmetry that, in the standard model, is sin 2 beta . The result is sin 2 beta =3.2/sub -2.0//sup +1.8/+or-0.5. (6 refs).oai:cds.cern.ch:5037491999
spellingShingle Particle Physics - Experiment
Barberio, E
Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title_full Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title_fullStr Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title_full_unstemmed Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title_short Investigation of CP violation in $B^{0} \to J/\psi K_{S}^{0}$ decays at LEP with the OPAL detector
title_sort investigation of cp violation in $b^{0} \to j/\psi k_{s}^{0}$ decays at lep with the opal detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/503749
work_keys_str_mv AT barberioe investigationofcpviolationinb0tojpsiks0decaysatlepwiththeopaldetector

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