Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/135257
Full metadata record
DC FieldValueLanguage
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorGarra Ticó, Jordi-
dc.contributor.authorBABAR Collaboration-
dc.date.accessioned2019-06-18T09:07:35Z-
dc.date.available2019-06-18T09:07:35Z-
dc.date.issued2011-07-22-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/2445/135257-
dc.description.abstractWe report the observation of the decay B − → D ( * ) + s K − ℓ − ¯ ν ℓ based on 342     fb − 1 of data collected at the Υ ( 4 S ) resonance with the BABAR detector at the PEP-II e + e − storage rings at SLAC. A simultaneous fit to three D + s decay chains is performed to extract the signal yield from measurements of the squared missing mass in the B meson decay. We observe the decay B − → D ( * ) + s K − ℓ − ¯ ν ℓ with a significance greater than 5 standard deviations (including systematic uncertainties) and measure its branching fraction to be B ( B − → D ( * ) + s K − ℓ − ¯ ν ℓ ) = [ 6.13 + 1.04 − 1.03 ( stat ) ± 0.43 ( syst ) ± 0.51 ( B ( D s ) ) ] × 10 − 4 , where the last error reflects the limited knowledge of the D s branching fractions.-
dc.format.extent8 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.107.041804-
dc.relation.ispartofPhysical Review Letters, 2011, vol. 107, num. 4, p. 041804-
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.107.041804-
dc.rights(c) American Physical Society, 2011-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.titleObservation of the Decay B−→D(*)+sK−ℓ−¯νℓ-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec602002-
dc.date.updated2019-06-18T09:07:36Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
602002.pdf185.14 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.