Mixing and CP violation in the Bs system with ATLAS

A measurement of the Bs0 → J/ψφ decay parameters, updated to include flavour tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from √s = 7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are: φs = 0.12 ± 0.25 (s...

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Detalles Bibliográficos
Autor principal: Scheirich, D
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1756209
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author Scheirich, D
author_facet Scheirich, D
author_sort Scheirich, D
collection CERN
description A measurement of the Bs0 → J/ψφ decay parameters, updated to include flavour tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from √s = 7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are: φs = 0.12 ± 0.25 (stat.) ± 0.05 (syst.) rad ∆Γs = 0.053 ± 0.021 (stat.) ± 0.010 (syst.) ps−1 where the parameter ∆Γs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for φs and ∆Γs are in agreement with the Standard Model expectations.
id cern-1756209
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17562092019-09-30T06:29:59Zhttp://cds.cern.ch/record/1756209engScheirich, DMixing and CP violation in the Bs system with ATLASParticle Physics - ExperimentA measurement of the Bs0 → J/ψφ decay parameters, updated to include flavour tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from √s = 7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are: φs = 0.12 ± 0.25 (stat.) ± 0.05 (syst.) rad ∆Γs = 0.053 ± 0.021 (stat.) ± 0.010 (syst.) ps−1 where the parameter ∆Γs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for φs and ∆Γs are in agreement with the Standard Model expectations.ATL-PHYS-SLIDE-2014-649oai:cds.cern.ch:17562092014-09-17
spellingShingle Particle Physics - Experiment
Scheirich, D
Mixing and CP violation in the Bs system with ATLAS
title Mixing and CP violation in the Bs system with ATLAS
title_full Mixing and CP violation in the Bs system with ATLAS
title_fullStr Mixing and CP violation in the Bs system with ATLAS
title_full_unstemmed Mixing and CP violation in the Bs system with ATLAS
title_short Mixing and CP violation in the Bs system with ATLAS
title_sort mixing and cp violation in the bs system with atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1756209
work_keys_str_mv AT scheirichd mixingandcpviolationinthebssystemwithatlas

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