Measurement of the track reconstruction efficiency at LHCb

LHCb Collaboration

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article numberP02007
JournalJournal of Instrumentation
Volume10
Issue number2
DOIs
StatePublished - Feb 12 2015

Fingerprint

Hadrons
Uncertainty
hadrons
unity
muons
Branching
Cross section
cross sections
decay
Decay
simulation
Interaction
interactions
Simulation

Keywords

  • Large detector-systems performance
  • Pattern recognition, cluster finding, calibration and fitting methods
  • Performance of High Energy Physics Detectors

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

Cite this

Measurement of the track reconstruction efficiency at LHCb. / LHCb Collaboration.

In: Journal of Instrumentation, Vol. 10, No. 2, P02007, 12.02.2015.

Research output: Contribution to journalArticle

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abstract = "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.",
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AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

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AU - Archilli, F.

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AU - Aslanides, E.

AU - Auriemma, G.

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AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

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AU - Bediaga, I.

AU - Belogurov, S.

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AU - Skwarnicki, Tomasz

AU - Stone, Sheldon

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AB - 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.

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