Measurement of the flavour-specific CP-violating asymmetry assl in B0s decays
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Título: | Measurement of the flavour-specific CP-violating asymmetry assl in B0s decays |
Autor/a: | LHCb Collaboration Adeva Andany, Bernardo Álvarez Cartelle, Paula Dosil Suárez, Álvaro Fernández Albor, Víctor Manuel Gallas Torreira, Abraham Antonio Hernando Morata, José Ángel Pazos Álvarez, Antonio Pérez Trigo, Eliseo Plo Casasus, Máximo Rodríguez Pérez, Pablo Romero Vidal, Antonio Saborido Silva, Juan José Sanmartín Sedes, Brais Santamarina Ríos, Cibrán Seco Miguélez, Marcos Antonio Vázquez Regueiro, Pablo Vázquez Sierra, Carlos |
Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
Data: | 2014 |
Editor: | Elsevier |
Cita bibliográfica: | Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., ... & Alkhazov, G. (2014). Measurement of the flavour-specific CP-violating asymmetry assl in Bs0 decays. Physics Letters B, 728, 607-615. |
Resumo: | The CP-violating asymmetry as sl is studied using semileptonic decays of B0s and B0s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0 fb−1. The reconstructed final states are D± s μ∓, with the D± s particle decaying in the φπ± mode. The D± s μ∓ yields are summed over B0s and B0s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain as sl = (−0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic. |
Versión do editor: | https://doi.org/10.1016/j.physletb.2013.12.030 |
URI: | http://hdl.handle.net/10347/22074 |
DOI: | 10.1016/j.physletb.2013.12.030 |
ISSN: | 0370-2693 |
E-ISSN: | 1873-2445 |
Dereitos: | © 2013 The Authors. Published by Elsevier B.V. Open access under CC BY license. |
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