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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-20T08:10:08Z
dc.date.accessioned2023-10-02T06:26:18Z
dc.date.available2020-11-20T08:10:08Z
dc.date.available2023-10-02T06:26:18Z
dc.date.created2012
dc.date.issued2013-03-12
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3126
dc.description.abstractThe decay B 0 → DK *0 and the charge conjugate mode are studied using 1.0 fb−1 of pp collision data collected by the LHCb experiment at s√=7 TeV in 2011. The CP asymmetry between the B 0 → DK *0 and the B¯¯¯¯0→DK¯¯¯¯¯∗0 decay rates, with the neutral D meson in the CP-even final state K + K −, is found to be $ \mathcal{A}_d^{KK }=-0.45\pm 0.23\pm 0.02, $ where the first uncertainty is statistical and the second is systematic. In addition, favoured B 0 → DK *0 decays are reconstructed with the D meson in the non-CP eigenstate K +π−. The ratio of the B-flavour averaged decay rates in D decays to CP and non-CP eigenstates is measured to be $ \mathcal{R}_d^{KK }=1.36_{-0.32}^{+0.37}\pm 0.07, $ where the ratio of the branching fractions of D 0 → K −π+ to D 0 → K + K − decays is included as multiplicative factor. The CP asymmetries measured with two control channels, the favoured B 0 → DK *0 decay with D → K +π− and the B¯¯¯¯0s→DK∗0 decay with D→K + K −, arealsoreported.eng
dc.format.extent15 p.cat
dc.language.isoengcat
dc.publisherSpringercat
dc.relation.ispartofJournal of High Energy Physics, 2013, Vol. 2013, No.3 (Març)cat
dc.rights© CERN
dc.rightsAttribution 4.0 International
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.otherPartícules (Física nuclear)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.subject.otherMesonscat
dc.titleMeasurement of CP observables in B 0 → DK ∗0 with D →K + K −cat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539
dc.identifier.doihttps://doi.org/10.1007/JHEP03(2013)067cat


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