First observation of the decay B0s → K0S K ∗(892)0 at LHCb
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| Title: | First observation of the decay B0s → K0S K ∗(892)0 at LHCb |
| Author: | LHCb Collaboration Adeva Andany, Bernardo Dosil Suárez, Álvaro Fernández Albor, Víctor Manuel Gallas Torreira, Abraham Antonio García Pardiñas, Julián Hernando Morata, José Ángel Lucio Martínez, Miriam Plo Casasus, Máximo Romero Vidal, Antonio Saborido Silva, Juan José Sanmartín Sedes, Brais Santamarina Ríos, Cibrán 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: | Hadron-Hadron scattering | B physics | |
| Date of Issue: | 2016 |
| Publisher: | Springer |
| Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. First observation of the decay B0s → K0S K ∗(892)0 at LHCb. J. High Energ. Phys. 2016, 12 (2016). https://doi.org/10.1007/JHEP01(2016)012 |
| Abstract: | A search for B0(s) → K0S K ∗(892)0 decays is performed using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The B 0s → K0S K ∗(892)0 decay is observed for the first time, with a significance of 7.1 standard deviations. The branching fraction is measured to be B(B0s→K¯0K∗(892)0)+B(B0s→K0K¯∗(892)0)=(16.4±3.4±2.3)×10−6, where the first uncertainty is statistical and the second is systematic. No evidence is found for the decay B 0 → K 0S K ∗(892)0 and an upper limit is set on the branching fraction, B(B0→K¯0K∗(892)0)+B(B0→K0K¯∗(892)0)<0.96×10−6 , at 90 % confidence level. All results are consistent with Standard Model predictions. |
| Publisher version: | https://doi.org/10.1007/JHEP01(2016)012 |
| URI: | http://hdl.handle.net/10347/22221 |
| DOI: | 10.1007/JHEP01(2016)012 |
| 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.