Search for CP violation in D± → K 0S K ± and D±s → K 0S π ± decays
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| Title: | Search for CP violation in D± → K 0S K ± and D±s → K 0S π ± decays |
| Author: | 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 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 | Hadron-Hadron Scattering | |
| Date of Issue: | 2014 |
| Publisher: | Springer |
| Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Search for CP violation in D ± → K 0S K ± and D ±s → K 0S π ± decays. J. High Energ. Phys. 2014, 25 (2014). https://doi.org/10.1007/JHEP10(2014)025 |
| Abstract: | A search for CP violation in Cabibbo-suppressed D ± → K 0S K ± and D ±s → K 0S π ± decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be AD±CP→K0SK±=(+0.03±0.17±0.14)%AD±sCP→K0Sπ±=(+0.38±0.46±0.17)%, assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D ±(s) → K 0S K ± and D ±(s) → K 0S π ± gives the sum AD±→K0SK±CP+AD±s→K0Sπ±CP=(+0.41±0.49±0.26)%. In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation |
| Publisher version: | https://doi.org/10.1007/JHEP10(2014)025 |
| URI: | http://hdl.handle.net/10347/21855 |
| DOI: | 10.1007/JHEP10(2014)025 |
| 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