PT Journal AU LHCb Collaboration (Aaij, Rea Garcia Martin, LM Henry, L Martinez-Vidal, F Oyanguren, A Remon Alepuz, C Ruiz Valls, P Ruiz Vidal, J Sanchez Mayordomo, C TI Measurement of the ratio of branching fractions of the decays0(2S) and arrange Lambda SO Journal of High Energy Physics JI J. High Energy Phys. PY 2019 BP 126 EP 16pp VL 03 IS 3 DI 10.1007/JHEP03(2019)126 LA English DE B physics; Branching fraction; Flavor physics; Hadron-Hadron scattering (experiments) AB Using pp collisions corresponding to 3 fb integrated luminosity, recorded by the LHCb experiment at centre- of- mass energies of 7 and 8 TeV, the ratio of branching fractions B (0b ! (2 S) ) =B (0b ! J= ) = 0 : 513 0 : 023 (stat) 0 : 016 (syst) 0 : 011 (B) is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used. ER