Measurement of the ratio of branching fractions <i>B</i>(B<sub>c</sub><SUP>+</SUP> → J/ψ K<SUP>+</SUP>)/<i>B</i>(B<sub>c</sub><SUP>+</SUP> → J/ψ π<SUP>+</SUP>)



Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G
et al (show 749 more authors) (2016) Measurement of the ratio of branching fractions <i>B</i>(B<sub>c</sub><SUP>+</SUP> → J/ψ K<SUP>+</SUP>)/<i>B</i>(B<sub>c</sub><SUP>+</SUP> → J/ψ π<SUP>+</SUP>). JOURNAL OF HIGH ENERGY PHYSICS, 1609 (9). 153-.

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Abstract

The ratio of branching fractions $R_{K/\pi} \equiv \mathcal{B}(B_{c}^{+} \to J/\psi K^{+})/\mathcal{B}(B_{c}^{+} \to J/\psi\pi^{+})$ 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${\mbox{fb}^{-1}}$. It is found to be $ R_{K/\pi} = 0.079\pm0.007\pm0.003$, 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.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-020.html
Uncontrolled Keywords: Branching fraction, Hadron-Hadron scattering (experiments), QCD
Depositing User: Symplectic Admin
Date Deposited: 26 Jul 2016 15:49
Last Modified: 07 Oct 2023 05:47
DOI: 10.1007/JHEP09(2016)153
Open Access URL: https://link.springer.com/content/pdf/10.1007/JHEP...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3002549