Measurement of the track reconstruction efficiency at LHCb - INSPIRE

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Measurement of the track reconstruction efficiency at LHCb

LHCb

Collaboration

Aug 6, 2014

24 pages

Published in:

JINST 10 (2015) 02, P02007

Published: Feb 12, 2015

e-Print:

1408.1251 [hep-ex]

DOI:

10.1088/1748-0221/10/02/P02007

Report number:

CERN-LHCB-DP-2013-002

Experiments:

CERN-LHC-LHCb

View in:

reference search324 citations

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Abstract: (IOP)

The determination of track reconstruction efficiencies at LHCb using J/ψ→μ(+)μ(-) decays is presented. Efficiencies above 95% are found for the data taking periods in 2010, 2011, and 2012. The ratio of the track reconstruction efficiency of muons in data and simulation is compatible with unity and measured with an uncertainty of 0.8 % for data taking in 2010, and at a precision of 0.4 % for data taking in 2011 and 2012. For hadrons an additional 1.4 % uncertainty due to material interactions is assumed. This result is crucial for accurate cross section and branching fraction measurements in LHCb.

Large detector-systems performance
Pattern recognition, cluster finding, calibration and fitting methods
Performance of High Energy Physics Detectors
track data analysis: efficiency
LHC-B
branching ratio
hadron: particle identification
muon: particle identification
p p: scattering
J/psi(3100): leptonic decay

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