Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/132879
Title: | Measurement of the Semileptonic CP Asymmetry in B0-¯B0 Mixing |
Author: | Badalov, Alexey Calvo Gómez, Míriam Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 28-Jan-2015 |
Publisher: | American Physical Society |
Abstract: | The semileptonic C P asymmetry in B 0 - ¯ B 0 mixing, a d sl , is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb − 1 , recorded by the LHCb experiment. Semileptonic B 0 decays are reconstructed in the inclusive final states D − μ + and D * − μ + , where the D − meson decays into the K + π − π − final state and the D * − meson into the ¯ D 0 ( → K + π − ) π − final state. The asymmetry between the numbers of D ( * ) − μ + and D ( * ) + μ − decays is measured as a function of the decay time of the B 0 mesons. The C P asymmetry is measured to be a d sl = ( − 0.02 ± 0.19 ± 0.30 ) % , where the first uncertainty is statistical and the second systematic. This is the most precise measurement of a d sl to date and is consistent with the prediction from the standard model. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.114.041601 |
It is part of: | Physical Review Letters, 2015, vol. 114, num. 4, p. 041601 |
URI: | http://hdl.handle.net/2445/132879 |
Related resource: | https://doi.org/10.1103/PhysRevLett.114.041601 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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