Measurement of the D*(2010)⁺ Natural Linewidth and the D*(2010)⁺—D⁰ Mass Difference

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dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorLees, J. P.en_US
dc.contributor.authorPoireau, V.en_US
dc.contributor.authorTisserand, V.en_US
dc.contributor.authorGrauges, E.en_US
dc.contributor.authorPalano, A.en_US
dc.contributor.authorEigen, G.en_US
dc.contributor.authorStugu, B.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorBaBar Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.date.accessioned2014-08-01T21:21:07Z
dc.date.available2014-08-01T21:21:07Z
dc.date.created2013-09-09en_US
dc.date.issued2013-09-09en_US
dc.date.submitted2013-04-20en_US
dc.description.abstractWe measure the mass difference, Δm₀, between the D *(2010)⁺ and the D⁰ and the natural linewidth, Γ, of the transition D*(2010)⁺ → D⁰π⁺. The data were recorded with the BABAR detector at center-of-mass energies at and near the ϒ(4S) resonance, and correspond to an integrated luminosity of approximately 477 fb⁻¹. The D⁰ is reconstructed in the decay modes D⁰ → K⁻ π⁺ and D⁰ → K⁻ π⁺ π⁻ π⁺. For the decay mode D⁰ → K⁻ π⁺ we obtain Γ = (83.4 ± 1.7 ± 1.5) keV and Δm₀ = (145425.6 ± 0.6 ± 1.8) keV, where the quoted errors are statistical and systematic, respectively. For the D⁰ → K⁻ π⁺ π⁻ π⁺ mode we obtain Γ = (83.2 ± 1.5 ± 2.6) keV and Δm₀ = (145426.6 ± 0.5 ± 2.0) keV. The combined measurements yield Γ = (83.3 ± 1.2 ± 1.4) keV and Δm₀ = (145425.9 ± 0.4 ± 1.7) keV; the width is a factor of approximately 12 times more precise than the previous value, while the mass difference is a factor of approximately 6 times more precise.en_US
dc.identifier.bibliographicCitationLees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2013. "Measurement of the D*(2010)⁺ natural linewidth and the D*(2010)⁺—D⁰ mass difference." Physical Review D 88(5), doi:10.1103/PhysRevD.88.052003en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue520035en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3846
dc.identifier.volume88en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD..88.052003
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights©2014 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourcePhysical Review D - Particles, Fields, Gravitation and Cosmology
dc.subjectGigaelectronvolts (GeV)en_US
dc.subjectAzimuthal angleen_US
dc.subjectResolution functionsen_US
dc.subjectResolution bandwidthen_US
dc.subjectD0 experimenten_US
dc.titleMeasurement of the D*(2010)⁺ Natural Linewidth and the D*(2010)⁺—D⁰ Mass Differenceen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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