Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+) - Archive ouverte HAL Access content directly
Journal Articles Journal of High Energy Physics Year : 2016

Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+)

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R. Aaij
  • Function : Author
J. Cogan
O. Leroy
J. Serrano

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 3fb−1. It is found to be RK/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.

Dates and versions

in2p3-01348885 , version 1 (26-07-2016)

Identifiers

Cite

R. Aaij, L. Beaucourt, M. Chefdeville, D. Decamp, N. Déléage, et al.. Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+). Journal of High Energy Physics, 2016, 09, pp.153. ⟨10.1007/JHEP09(2016)153⟩. ⟨in2p3-01348885⟩
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