Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/130843
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dc.contributor.authorGarra Ticó, Jordi-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorBABAR Collaboration-
dc.date.accessioned2019-03-25T12:02:52Z-
dc.date.available2019-03-25T12:02:52Z-
dc.date.issued2011-11-06-
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/2445/130843-
dc.description.abstractWe present a study of the decays B ± → D K ± with D mesons reconstructed in the K + π − π 0 or K − π + π 0 final states, where D indicates a D 0 or a ¯¯¯ D 0 meson. Using a sample of 474 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at SLAC, we measure the ratios R ± ≡ Γ ( B ± → [ K ∓ π ± π 0 ] D K ± ) Γ ( B ± → [ K ± π ∓ π 0 ] D K ± ) . We obtain R + = ( 5 + 12 − 10 ( stat ) + 2 − 4 ( syst ) ) × 10 − 3 and R − = ( 12 + 12 − 10 ( stat ) + 3 − 5 ( syst ) ) × 10 − 3 , from which we extract the upper limits at 90% probability: R + < 23 × 10 − 3 and R − < 29 × 10 − 3 . Using these measurements, we obtain an upper limit for the ratio r B of the magnitudes of the b → u and b → c amplitudes r B < 0.13 at 90% probability.-
dc.format.extent10 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevD.84.012002-
dc.relation.ispartofPhysical Review D, 2011, vol. 84, num. 1, p. 12002-
dc.relation.urihttps://doi.org/10.1103/PhysRevD.84.012002-
dc.rights(c) American Physical Society, 2011-
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.classificationMesons (Física nuclear)-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.subject.otherMesons (Nuclear physics)-
dc.titleSearch for b → u transitions in B ± → [K∓π±π0]DK± decays-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec654989-
dc.date.updated2019-03-25T12:02:53Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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