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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.accessioned2021-05-07T04:27:54Z
dc.date.accessioned2023-10-02T06:48:38Z
dc.date.available2021-05-07T04:27:54Z
dc.date.available2023-10-02T06:48:38Z
dc.date.created2013-08
dc.date.issued2013-10
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3488
dc.description.abstractA measurement of the CP asymmetry in Bþ ! Kþ þ decays is presented using pp collision data, corresponding to an integrated luminosity of 1:0 fb 1, recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of þ invariant mass squared in the range 0:05 < q2 < 22:00 GeV2=c4, excluding the J=c and c ð2SÞ resonance regions. Production and detection asymmetries are corrected for using the Bþ ! J=c Kþ decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be ACP ¼ 0:000 0:033 ðstatÞ 0:005 ðsystÞ 0:007 (J=c K), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.eng
dc.format.extent9 p.cat
dc.language.isoengcat
dc.publisherAmerican Physical Societycat
dc.relation.ispartofPhysical Review Letters, 2013, Vol. 111, No. 15cat
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.otherPartícules (Física nuclear)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.titleMeasurement of the C P Asymmetry in B + → K + μ + μ − Decayscat
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/10.1103/PhysRevLett.111.151801cat


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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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