TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - Measurement of the track reconstruction efficiency at LHCb
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P02007 - 23pp
VL  - 10
PB  - Iop Publishing Ltd
KW  - Large detector-systems performance
KW  - Pattern recognitio
KW  - cluster finding
KW  - calibration and fitting methods
KW  - Performance of High Energy Physics Detectors
AB  - The determination of track reconstruction efficiencies at LHCb using J/psi -> mu(+)mu(-) 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.
SN  - 1748-0221
UR  - http://arxiv.org/abs/1408.1251
UR  - https://doi.org/10.1088/1748-0221/10/02/P02007
DO  - 10.1088/1748-0221/10/02/P02007
LA  - English
N1  - WOS:000351664800054
ID  - LHCbCollaborationAaij_etal2015
ER  -