Opposite-side flavour tagging of B mesons at the LHCb experiment - INSPIRE

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Opposite-side flavour tagging of B mesons at the LHCb experiment

LHCb

Collaboration

Feb, 2012

22 pages

Published in:

Eur.Phys.J.C 72 (2012) 2022

Published: Jun 7, 2012

e-Print:

1202.4979 [hep-ex]

DOI:

10.1140/epjc/s10052-012-2022-1

Report number:

CERN-PH-EP-2012-039,
LHCB-PAPER-2011-027

Experiments:

CERN-LHC-LHCb

View in:

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Abstract:

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/psi K+, B0 -> J/psi K*0 and B0 -> D*- mu+ nu_mu decay modes with 0.37 fb^-1 of data collected in pp collisions at sqrt(s) = 7 TeV during the 2011 physics run. The opposite-side tagging power is determined in the B+ -> J/psi K+ channel to be (2.10 +- 0.08 +- 0.24) %, where the first uncertainty is statistical and the second is systematic.

flavor: asymmetry: time dependence
p p: scattering
LHC-B
bottom: pair production
B: hadroproduction
particle identification: flavor
B: hadronic decay
B0: semileptonic decay
data analysis method: efficiency
performance

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Figures(8)

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