Measurement of CP asymmetry in B0s → D ∓s K± decays
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| Title: | Measurement of CP asymmetry in B0s → D ∓s K± decays |
| 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 |
| Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
| Subject: | CP violation | CKM angle gamma | B physics | Flavor physics | Hadron-Hadron Scattering | |
| Date of Issue: | 2014 |
| Publisher: | Springer |
| 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 |
| 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 |
| DOI: | 10.1007/JHEP11(2014)060 |
| ISSN: | 1029-8479 |
| 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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Except where otherwise noted, this item's license is described as © 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.