<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment"^^ . "This thesis presents a so called same side kaon tagging algorithm, which is used in the determination of the production flavour of B_s^0 mesons. The measurement of the B_s^0 – B_s^0 bar oscillation frequency ΔDelta ms in the decay B_s^0 -> D_s^- π^+ is used to optimise and calibrate this algorithm. The presented studies are performed on a data set corresponding to an integrated luminosity of L = 1.0 fb^-1 collected by the LHCb experiment in 2011. The same side kaon tagging algorithm, based on multivariant classifiers, is developed, calibrated and tested using a sample of about 26,000 reconstructed B_s^0 -> D_s^- π^+ decays. An effective tagging power of ε_eff = ε_tag(1 - 2ω)^2 = 2.42 +- 0.39% is achieved. Combining the same side kaon tagging algorithm with additional flavour tagging algorithms results in a combined tagging performance of ε_eff = ε_tag(1 - 2ω)^2 = 5.13 +- 0.54%. With this combination, the B_s^0 – B_s^0 bar oscillation frequency is measured to be Δm_s = 17.745 +- 0.022 (stat.) +- 0.006 (syst.) ps^-1, which is the most precise measurement to date."^^ . "2013" . . . . . . . "Georg Alexander"^^ . "Krocker"^^ . "Georg Alexander Krocker"^^ . . . . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (PDF)"^^ . . . "KrockerThesis.pdf"^^ . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Development and calibration of a same side kaon tagging\r\nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #15769 \n\nDevelopment and calibration of a same side kaon tagging \nalgorithm and measurement of the B_s^0 – B_s^0 bar oscillation frequency Δm_s at the LHCb experiment\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .