Título:
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Measurement of the B0s -> Ds(*)+Ds(*)- branching fractions
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Autor/a:
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Gascón Fora, David; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; Marín Benito, Carla; Picatoste Olloqui, Eduardo; Rives Molina, Vicente José; LHCb Collaboration
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Otros autores:
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Universitat de Barcelona |
Abstract:
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The branching fraction of the decay B-s(0) -> D-s(()*D-)+(s)(*()-) is measured using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1), collected using the LHCb detector at a center-of-mass energy of 7 TeV. It is found to be B(B-s(0) -> D-s(()*D-)(s)(*()-)) = (3.05 +/- 0.10 +/- 0.20 +/- 0.34)%, where the uncertainties are statistical, systematic, and due to the normalization channel, respectively. The branching fractions of the individual decays corresponding to the presence of one or two D-s(*+/-) are also measured. The individual branching fractions are found to be B(B-s(0) -> D-s*D-+/-(s)-/+) = (1.35 +/- 0.06 +/- 0.09 +/- 0.15)%, B(B-s(0) -> D-s*D-+(s)*(-)) = (1.27 +/- 0.08 +/- 0.10 +/- 0.14)%. All three results are the most precise determinations to date. |
Materia(s):
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-Processos de ramificació -Hadrons -Mesons (Física nuclear) -Branching processes -Hadrons -Mesons (Nuclear physics) |
Derechos:
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(c) American Physical Society, 2016
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Physical Society
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