Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+)
- Aaij, R.
- Beaucourt, L.
- Chefdeville, M.
- Decamp, D.
- Déléage, N.
- Ghez, P.
- Lees, J.-P.
- Marchand, J.-F.
- Minard, M.-N.
- Pietrzyk, B.
- t'Jampens, S.
- Tisserand, V.
- Tournefier, E.
- Akar, S.
- Romeu, J. Arnau
- Aslanides, E.
- Cogan, J.
- Bruyn, K. De
- Kanso, W.
- Legac, R.
- Leroy, O.
- Mancinelli, G.
- Martin, M.
- Mordà, A.
- Serrano, J.
- Tayduganov, A.
- Tsaregorodtsev, A.
- Ajaltouni, Z.J.
- Baalouch, M.
- Cogneras, E.
- Deschamps, O.
- Gazzoni, G.
- Gándara, M. Grabalosa
- Hadjivasiliou, C.
- Henrard, P.
- Kozeiha, M.
- Lefèvre, R.
- Maratas, J.
- Monteil, S.
- Perret, P.
- Vernet, M.
Publication date
September 2016
DOI Publisher
Springer Science and Business Media LLCAbstract
See paper for full list of authors - All figures and tables, along with any supplementary material and additional information, are available at this https URL - Submitted to JHEPInternational audienceThe 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
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