Title: | Measurement of CP asymmetry in B0s → D ∓s K± decays
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Author: | LHCb Collaboration
Adeva Andany, Bernardo
Álvarez Cartelle, Paula
Dosil Suárez, Álvaro
Fernández Albor, Víctor Manuel
Gallas Torreira, Abraham Antonio
García Pardiñas, Julián
Hernando Morata, José Ángel
Pazos Álvarez, Antonio
Pérez Trigo, Eliseo
Plo Casasus, Máximo
Romero Vidal, Antonio
Saborido Silva, Juan José
Sanmartín Sedes, Brais
Santamarina Ríos, Cibrán
Seco Miguélez, Marcos Antonio
Vázquez Regueiro, Pablo
Vázquez Sierra, Carlos
Vieites Díaz, María
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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: | CP violation | CKM angle gamma | B physics | Flavor physics | Hadron-Hadron Scattering | |
Date of Issue: | 2014
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Publisher: | Springer
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Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of CP asymmetry in B0s → D∓s K± decays. J. High Energ. Phys. 2014, 60 (2014). https://doi.org/10.1007/JHEP11(2014)060
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Abstract: | We report on measurements of the time-dependent CP violating observables in B 0s → D ∓s K ± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find the CP violating observables C f = 0.53±0.25±0.04, A ΔΓf = 0.37 ± 0.42 ± 0.20, AΔΓf¯=0.20±0.41±0.20, S f = −1.09±0.33±0.08, Sf¯=−0.36±0.34±0.08, where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the B 0s mixing phase −2β s leads to the first extraction of the CKM angle γ from B 0s → D ∓s K ± decays, finding γ = (115 + 28− 43)° modulo 180° at 68% CL, where the error contains both statistical and systematic uncertainties. |
Publisher version: | https://doi.org/10.1007/JHEP11(2014)060 |
URI: | http://hdl.handle.net/10347/22057
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DOI: | 10.1007/JHEP11(2014)060 |
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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