Determination of the event collision time with the ALICE detector at the LHC

J. Adam, D. Alexandre, H. A. Andrews, L. S. Barnby, David Evans, Katie Graham, Peter Jones, Anton Jusko, Roman Lietava, Marian Krivda, Orlando Villalobos Baillie, Nima Zardoshti

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Particle identification is an important feature of the ALICE detector at the LHC. In particular, for particle identification via the time-of-flight technique, the precise determination of the event collision time represents an important ingredient of the quality of the measurement. In this paper, the different methods used for such a measurement in ALICE by means of the T0 and the TOF detectors are reviewed. Efficiencies, resolution and the improvement of the particle identification separation power of the methods used are presented for the different LHC colliding systems (pp, p-Pb and Pb-Pb) during the first period of data taking of LHC (RUN 1).
Original languageEnglish
Article number99
Number of pages17
JournalEuropean Physical Journal Plus
Issue number2
Early online date24 Feb 2017
Publication statusE-pub ahead of print - 24 Feb 2017


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