Title: | First observation of the decay B0s → K0S K ∗(892)0 at LHCb
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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
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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: | Hadron-Hadron scattering | B physics | |
Date of Issue: | 2016
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Publisher: | Springer
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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
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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
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DOI: | 10.1007/JHEP01(2016)012 |
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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