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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2021-07-02T15:31:47Z
dc.date.accessioned2023-07-13T09:51:42Z
dc.date.available2021-07-02T15:31:47Z
dc.date.available2023-07-13T09:51:42Z
dc.date.issued2011-04
dc.identifier.urihttp://hdl.handle.net/20.500.14342/2858
dc.description.abstractThe interference between B0s decays to Jψϕ either directly or via B0s−B¯0s oscillation gives rise to a CP violating phase ϕJ/ψϕs. In the Standard Model, this phase is approximately -2βs, where βs = arg (-VtsV∗tb/VcsV∗cb). We have performed a measurement of ϕJψϕs using a sample that contains 836 ± 60 B0s→J/ψϕ events extracted from 36 pb−1 of pp collisions collected during the 2010 LHC run at s√ = 7 TeV. The result is presented as a two-dimensional region in the ϕs-ΔΓs plane. The probability of a fluctuation from the Standard Model expectation to the observed result for ϕs and ΔΓs is 22% (``1.2σ''). We derive a one-dimensional interval at 68% CL of ϕs∈ [-2.7, -0.5] rad.eng
dc.format.extent15 p.cat
dc.language.isoengcat
dc.publisher13th International Conference on B-Physics at Hadron Machines, Amsterdam, 4-8 of April 2011cat
dc.rightsAttribution 4.0 International
dc.rights© CERN
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.subject.otherMesonscat
dc.titleTagged time-dependent angular analysis of B0s→J/ψϕ decays with the 2010 LHCb datacat
dc.typeinfo:eu-repo/semantics/conferenceObjectcat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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