Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+)
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Abstract
The ratio of branching fractions RK/π≡B(B+c→J/ψK+)/B(B+c→J/ψπ+) is measured with pp collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. It is found to be R K/π = 0.079 ± 0.007 ± 0.003, where the first uncertainty is statistical and the second is systematic. This measurement is consistent with the previous LHCb result, while the uncertainties are significantly reduced.
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Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+) . J. High Energ. Phys. 2016, 153 (2016). https://doi.org/10.1007/JHEP09(2016)153
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© CERN, for the bene t 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.