Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/131390
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dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorBABAR Collaboration-
dc.date.accessioned2019-04-04T11:34:12Z-
dc.date.available2019-04-04T11:34:12Z-
dc.date.issued2006-06-09-
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/2445/131390-
dc.description.abstractWe present measurements of the branching fractions and charge asymmetries of B decays to all D ( * ) ¯¯¯ D ( * ) modes. Using 232 × 10 6 B ¯¯¯ B pairs recorded on the Υ ( 4 S ) resonance by the BABAR detector at the e + e − asymmetric B factory PEP-II at the Stanford Linear Accelerator Center, we measure the branching fractions B ( B 0 → D * + D * − ) = ( 8.1 ± 0.6 ± 1.0 ) × 10 − 4 , B ( B 0 → D * ± D ∓ ) = ( 5.7 ± 0.7 ± 0.7 ) × 10 − 4 , B ( B 0 → D + D − ) = ( 2.8 ± 0.4 ± 0.5 ) × 10 − 4 , B ( B + → D * + ¯¯¯ D * 0 ) = ( 8.1 ± 1.2 ± 1.2 ) × 10 − 4 , B ( B + → D * + ¯¯¯ D 0 ) = ( 3.6 ± 0.5 ± 0.4 ) × 10 − 4 , B ( B + → D + ¯¯¯ D * 0 ) = ( 6.3 ± 1.4 ± 1.0 ) × 10 − 4 , and B ( B + → D + ¯¯¯ D 0 ) = ( 3.8 ± 0.6 ± 0.5 ) × 10 − 4 , where in each case the first uncertainty is statistical and the second systematic. We also determine the limits B ( B 0 → D * 0 ¯¯¯ D * 0 ) < 0.9 × 10 − 4 , B ( B 0 → D * 0 ¯¯¯ D 0 ) < 2.9 × 10 − 4 , and B ( B 0 → D 0 ¯¯¯ D 0 ) < 0.6 × 10 − 4 , each at 90% confidence level. All decays above denote either member of a charge-conjugate pair. We also determine the C P -violating charge asymmetries A ( B 0 → D * ± D ∓ ) = 0.03 ± 0.10 ± 0.02 , A ( B + → D * + ¯¯¯ D * 0 ) = − 0.15 ± 0.11 ± 0.02 , A ( B + → D * + ¯¯¯ D 0 ) = − 0.06 ± 0.13 ± 0.02 , A ( B + → D + ¯¯¯ D * 0 ) = 0.13 ± 0.18 ± 0.04 , and A ( B + → D + ¯¯¯ D 0 ) = − 0.13 ± 0.14 ± 0.02 . Additionally, when we combine these results with information from time-dependent C P asymmetries in B 0 → D ( * ) + D ( * ) − decays and world-averaged branching fractions of B decays to D ( * ) s ¯¯¯ D ( * ) modes, we find the Cabibbo-Kobayashi-Maskawa phase γ is favored to lie in the range (0.07-2.77) radians (with a + 0 or + π radians ambiguity) at 68% confidence level.-
dc.format.extent19 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.73.112004-
dc.relation.ispartofPhysical Review D, 2006, vol. 73, num. 11, p. 112004-
dc.relation.urihttps://doi.org/10.1103/PhysRevD.73.112004-
dc.rights(c) American Physical Society, 2006-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.classificationViolació CP (Física nuclear)-
dc.subject.classificationMesons (Física nuclear)-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.subject.otherCP violation (Nuclear physics)-
dc.subject.otherMesons (Nuclear physics)-
dc.titleMeasurement of branching fractions and CP-violating charge asymmetries for B-meson decays to D(*)¯¯¯D(*), and implications for the Cabibbo-Kobayashi-Maskawa angle γ-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec542581-
dc.date.updated2019-04-04T11:34:13Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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