Resonances and CP violation in B0s and B¯0s→J/ψK+K− decays in the mass region above the ϕ(1020)
Title: | Resonances and CP violation in B0s and B¯0s→J/ψK+K− decays in the mass region above the ϕ(1020)
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Author: | LHCb Collaboration
Adeva Andany, Bernardo
Borsato, Martino
Chobanova, Veronika
Cid Vidal, Xabier
Dosil Suárez, Álvaro
Fernández Prieto, Antonio
García Pardiñas, Julián
Lemos Cid, Edgar
Lucio Martínez, Miriam
Martínez Santos, Diego
Plo Casasus, Máximo
Prisciandaro, Jessica
Ramos Pernas, Miguel
Romero Vidal, Antonio
Saborido Silva, Juan José
Sanmartín Sedes, Brais
Santamarina Ríos, Cibrán
Vázquez Regueiro, Pablo
Vieites Díaz, María
Vázquez Sierra, Carlos
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Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
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Subject: | B physics | CP violation | Spectroscopy | Hadron-Hadron scattering (experiments) | |
Date of Issue: | 2017
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Publisher: | Springer
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Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Resonances and CP violation in B0s and B¯0s→J/ψK+K− decays in the mass region above the ϕ(1020). J. High Energ. Phys. 2017, 37 (2017). https://doi.org/10.1007/JHEP08(2017)037
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Abstract: | The decays of B 0s and B¯0s mesons into the J/ψK + K − final state are studied in the K + K − mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕ s , the decay width, Γ s , and the width difference between light and heavy mass eigenstates, ΔΓ s . A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1 produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕ s = 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ + π − and J/ψϕ(1020) final states gives ϕ s = 1 ± 37 mrad, consistent with the Standard Model prediction. |
Publisher version: | https://doi.org/10.1007/JHEP08(2017)037 |
URI: | http://hdl.handle.net/10347/22665
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DOI: | 10.1007/JHEP08(2017)037 |
ISSN: | 1029-8479
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Rights: | © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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