Measurement of the track reconstruction efficiency at LHCb


Aaij R., Adeva B., Adinolfi M., Affolder A., Ajaltouni Z., Akar S., ...Daha Fazla

Journal of Instrumentation, cilt.10, sa.2, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 2
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1088/1748-0221/10/02/p02007
  • Dergi Adı: Journal of Instrumentation
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Large detector-systems performance, Pattern recognitio, cluster finding, calibration and fitting methods, Performance of High Energy Physics Detectors
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

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.