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Opposite-side flavour tagging of B mesons at the LHCb experiment
- The LHCb Collaboration;
- Aaij, R;
- Abellan Beteta, C;
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Published Web Location
https://doi.org/10.1140/epjc/s10052-012-2022-1Abstract
The calibration and performance of the opposite-side flavour tagging algorithms used for the measurements of time-dependent asymmetries at the LHCb experiment are described. The algorithms have been developed using simulated events and optimized and calibrated with B+→J/ψK+, B0→J/ψK∗0 and B0→D∗−μ+νμ decay modes with 0.37 fb−1 of data collected in pp collisions at $$\sqrt{s} = 7\mbox{~TeV}$$ during the 2011 physics run. The opposite-side tagging power is determined in the B+→J/ψK+ channel to be (2.10±0.08±0.24) %, where the first uncertainty is statistical and the second is systematic.
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