TY - JOUR AU - LHCb Collaboration (Aaij, R. et al AU - Martinez-Vidal, F. AU - Oyanguren, A. AU - Ruiz Valls, P. AU - Sanchez Mayordomo, C. PY - 2015 DA - 2015// TI - B flavour tagging using charm decays at the LHCb experiment T2 - J. Instrum. JO - Journal of Instrumentation SP - P10005 - 16pp VL - 10 PB - Iop Publishing Ltd KW - Performance of High Energy Physics Detectors KW - Analysis and statistical methods AB - An algorithm is described for tagging the flavour content at production of neutral B mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a B meson with the charge of a reconstructed secondary charm hadron from the decay of the other b hadron produced in the proton-proton collision. Charm hadron candidates are identified in a number of fully or partially reconstructed Cabibbo-favoured decay modes. The algorithm is calibrated on the self-tagged decay modes B+ -> J/psi K+ and B-0 -> J/psi K*(0) using 3.0fb(-1) of data collected by the LHCb experiment at pp centre-of-mass energies of 7TeV and 8TeV. Its tagging power on these samples of B -> J/psi X decays is (0.30 +/- 0.01 +/- 0.01) %. SN - 1748-0221 UR - http://arxiv.org/abs/1507.07892 UR - https://doi.org/10.1088/1748-0221/10/10/P10005 DO - 10.1088/1748-0221/10/10/P10005 LA - English N1 - WOS:000367674700007 ID - LHCbCollaborationAaij_etal2015 ER -