Particle identification with a track fit χ2

Research output: Contribution to journalArticle


Tracker detectors can be used to identify charged particles based on their global χ value obtained during track fitting with the Kalman filter. This approach builds upon the knowledge of detector material and local position resolution, using the known physics of multiple scattering and energy loss. The proposed method is independent of the traditional way of identification using deposited energy. The performance for present LHC experiments is demonstrated.

Original languageEnglish
Pages (from-to)256-259
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - May 21 2011



  • Energy loss
  • Multiple scattering
  • Particle identification
  • Tracker detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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