Measurement of the track reconstruction efficiency at LHCb

Research output: Contribution to journalArticlepeer-review

Authors

  • LHCb Collaboration
  • R. Aaij
  • B. Adeva
  • M. Adinolfi
  • A. Affolder
  • Z. Ajaltouni
  • S. Akar
  • J. Albrecht
  • F. Alessio
  • M. Alexander
  • S. Ali
  • G. Alkhazov
  • P. Alvarez Cartelle
  • A. A. Alves
  • S. Amato
  • S. Amerio
  • Y. Amhis
  • L. An
  • L. Anderlini
  • J. Anderson
  • R. Andreassen
  • M. Andreotti
  • J. E. Andrews
  • R. B. Appleby
  • O. Aquines Gutierrez
  • F. Archilli
  • A. Artamonov
  • M. Artuso
  • E. Aslanides
  • G. Auriemma
  • M. Baalouch
  • S. Bachmann
  • J. J. Back
  • A. Badalov
  • W. Baldini
  • R. J. Barlow
  • C. Barschel
  • S. Barsuk
  • W. Barter
  • Simone Bifani
  • N. Farley
  • P. Griffith
  • Philip Ilten
  • Ian Kenyon
  • Cristina Lazzeroni
  • A. Mazurov
  • J. McCarthy
  • Chris Parkinson
  • L. Pescatore
  • Dmitry Popov
  • Nigel Watson

Colleges, School and Institutes

External organisations

  • Institution Nikhef National Institute for Subatomic Physics
  • Universidad de Santiago de Compostela
  • University of Bristol
  • University of Liverpool
  • LPC
  • IN2P3
  • TU Dortmund University, Germany
  • CERN
  • University of Glasgow
  • Petersburg Nuclear Physics Institute (PNPI)
  • Department of Physics and Astronomy and INFN
  • Universidade Federal Do Rio de Janeiro
  • INFN Padova
  • Tsinghua University
  • Sezione INFN di Firenze
  • University of Florence
  • University of Zurich
  • University of Cincinnati
  • Sezione INFN di Ferrara
  • University of Ferrara
  • University of Maryland
  • University of Manchester
  • Max-Planck-Institut für Kernphysik (MPIK)
  • Institute for High Energy Physics (IHEP)
  • Syracuse University
  • Università della Basilicata
  • Ruprecht-Karls-Universität Heidelberg
  • University of Warwick
  • Universitat de Barcelona
  • University of Cambridge

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.

Details

Original languageEnglish
Article numberP02007
Number of pages23
JournalJournal of Instrumentation
Volume10
Issue number2
Publication statusPublished - 12 Feb 2015

Keywords

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

ASJC Scopus subject areas