The calibration ; performance of the opposites-ide 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 ; optimized ; calibrated with B+ → J/ψ K+, B0 →J/ψK*0 ; B0 →D*− μ + ν<inf>μ</inf> decay modes with 0.37 fb−1 of data collected in pp collisions at √s = 7 TeV during the 2011 physics run. The opposite-side tagging power is determined in the B+ → J/ψ K + channel to be (2.10 ± 0.08 ± 0.24) %, where the first uncertainty is statistical ; the second is systematic. © 2012, CERN, for the benefit of the LHCb collaboration.
Opposite-side flavour tagging of B mesons at the LHCb experiment
PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2012-01-01
Abstract
The calibration ; performance of the opposites-ide 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 ; optimized ; calibrated with B+ → J/ψ K+, B0 →J/ψK*0 ; B0 →D*− μ + νI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.