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http://hdl.handle.net/10347/22142
Título: | Measurement of the time-dependent CP asymmetries in B0s → J/ψK0S
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Autor/a: | LHCb Collaboration
Adeva Andany, Bernardo
Dosil Suárez, Álvaro
Fernández Albor, Víctor Manuel
Gallas Torreira, Abraham Antonio
García Pardiñas, Julián
Hernando Morata, José Ángel
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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Centro/Departamento: | 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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Palabras chave: | CP violation | Hadron-Hadron Scattering | Branching fraction | B physics | Flavor physics | |
Data: | 2015
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Editor: | Springer
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Cita bibliográfica: | Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the time-dependent CP asymmetries in B0s → J/ψK0S . J. High Energ. Phys. 2015, 131 (2015). https://doi.org/10.1007/JHEP06(2015)131
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Resumo: | The first measurement of decay-time-dependent CP asymmetries in the decay B0s → J/ψK0S and an updated measurement of the ratio of branching fractions B(B0s→J/ψK0S)/B(B0→J/ψK0S)are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8TeV. The results on the CP asymmetries are Aat B(B0s→J/ψK0S)= 0.49 ±0.77 0.65 (stat) ± 0.06(syst) , Cdir(B0s→J/ψK0S)= −0.28 ± 0.41(stat) ± 0.08(syst) , Smix(B0s→J/ψK0S)= −0.08 ± 0.40(stat) ± 0.08(syst) .
The ratio B (B0s→J/ψK0S)= / B(B0s→J/ψK0S)= is measured to be
0.0431 ± 0.0017(stat) ± 0.0012(syst) ± 0.0025(fs/fd) ,
where the last uncertainty is due to the knowledge of the B0
s and B0 production fractions. |
Versión do editor: | https://doi.org/10.1007/JHEP06(2015)131 |
URI: | http://hdl.handle.net/10347/22142
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DOI: | 10.1007/JHEP06(2015)131 |
ISSN: | 1029-8479
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Dereitos: | © 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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