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A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements
The polarization of the W-propagator in semileptonic b decays is measured with the 13 experiment at LEP via simultaneous observation of the charged lepton and the neutrino spectrum. The polarization is seen with more than 3 standard deviations and found to be in agreement with the V-AxV-A structure....
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| Lenguaje: | eng |
| Publicado: |
1995
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| Acceso en línea: | http://cds.cern.ch/record/2302332 |
| _version_ | 1780957277887397888 |
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| author | Behner, Frank |
| author_facet | Behner, Frank |
| author_sort | Behner, Frank |
| collection | CERN |
| description | The polarization of the W-propagator in semileptonic b decays is measured with the 13 experiment at LEP via simultaneous observation of the charged lepton and the neutrino spectrum. The polarization is seen with more than 3 standard deviations and found to be in agreement with the V-AxV-A structure. The measurement excludes the V+Ax V-A polarization with more than 6 standard deviations. Furthermore, the branching ratio in B_, vX is measured and found to be 22.7%±0.8%(stat.)±l.5%(syst.) which corresponds to a branching ratio of B_,evX of 10.1%±0.8%. |
| id | oai-inspirehep.net-410759 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1995 |
| record_format | invenio |
| spelling | oai-inspirehep.net-4107592019-09-30T06:29:59Zhttp://cds.cern.ch/record/2302332engBehner, FrankA measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurementsParticle Physics - ExperimentThe polarization of the W-propagator in semileptonic b decays is measured with the 13 experiment at LEP via simultaneous observation of the charged lepton and the neutrino spectrum. The polarization is seen with more than 3 standard deviations and found to be in agreement with the V-AxV-A structure. The measurement excludes the V+Ax V-A polarization with more than 6 standard deviations. Furthermore, the branching ratio in B_, vX is measured and found to be 22.7%±0.8%(stat.)±l.5%(syst.) which corresponds to a branching ratio of B_,evX of 10.1%±0.8%.oai:inspirehep.net:4107591995 |
| spellingShingle | Particle Physics - Experiment Behner, Frank A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title | A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title_full | A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title_fullStr | A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title_full_unstemmed | A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title_short | A measurement of the V-A x V-A structure of the weak charged current in semileptonic b decays and missing energy measurements |
| title_sort | measurement of the v-a x v-a structure of the weak charged current in semileptonic b decays and missing energy measurements |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/2302332 |
| work_keys_str_mv | AT behnerfrank ameasurementofthevaxvastructureoftheweakchargedcurrentinsemileptonicbdecaysandmissingenergymeasurements AT behnerfrank measurementofthevaxvastructureoftheweakchargedcurrentinsemileptonicbdecaysandmissingenergymeasurements |