Observation and Study of the Baryonic B-Meson Decays B→D^{(*)}pp̅ (π)(π)

dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorDel Amo Sanchez, P.en_US
dc.contributor.authorLees, J. P.en_US
dc.contributor.authorPoireau, V.en_US
dc.contributor.authorPrencipe, E.en_US
dc.contributor.authorTisserand, V.en_US
dc.contributor.authorGarra Tico, J.en_US
dc.contributor.authorGrauges, E.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBaBar Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.date.accessioned2014-02-26T22:47:42Z
dc.date.available2014-02-26T22:47:42Z
dc.date.created2012-05-30en_US
dc.date.issued2012-05-30en_US
dc.description.abstractWe present results for B-meson decay modes involving a charm meson, protons, and pions using 455×10⁶ BB̄ pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-energy e⁺e⁻ collider. The branching fractions are measured for the following ten decays: B̅⁰→D⁰pp̄, B̅⁰→D*⁰pp̄, B̅⁰→D⁺pp̄π⁻, B̅⁰→D*⁺pp̄π⁻, B⁻→D⁰pp̄π⁻, B⁻→D*⁰ pp̄π⁻, B̅⁰→D⁰pp̄→D0pp̄π⁻π⁺, B̅⁰→D*⁰pp̄π⁻π⁺, B⁻→D*⁺pp̅π⁻, B⁻→D⁰pp̄π⁻, B⁻→D*⁰pp̄π⁻, B̅⁰→D⁰pp̄π⁻π⁺, B̅⁰→D*⁰pp̄π⁻π⁺, B⁻→D⁺pp̄π⁻π⁻, and B⁻→D*⁺pp̄π⁻π⁻. The four B⁻ and the two five-body B̅⁰ modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(pp̄) and M(D^{(*)⁰}p) invariant-mass distributions show enhancements near threshold values. In the four-body mode B̅⁰→D⁺pp̄π⁻, the M(pπ⁻) distribution shows a narrow structure of unknown origin near 1.5 GeV/c². The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions.en_US
dc.identifier.bibliographicCitationDel Amo Sanchez, P., J. P. Lees, V. Poireau, E. Prencipe, et al. 2012. "Observation and study of the baryonic B-meson decays B→D(*)pp̅ (π)(π)." Physical Review D - Particles, Fields, Gravitation and Cosmology 85(9), doi:10.1103/PhysRevD.85.092017en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue9en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3094
dc.identifier.volume85en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.85.092017
dc.rights© 2012 American Physical Societyen_US
dc.sourcePhysical Review D - Particles, Fields, Gravitation and Cosmology
dc.subjectPhysicsen_US
dc.subjectPions--Decayen_US
dc.subjectB mesons--Decayen_US
dc.titleObservation and Study of the Baryonic B-Meson Decays B→D^{(*)}pp̅ (π)(π)en_US
dc.typeTexten_US
dc.type.genreArticleen_US

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