L0 trigger for the EMCal detector of the ALICE experiment

Jiri Kral, Terry Awes, Hans Muller, Jan Rak, Joachim Schambach

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The ALICE experiment at the CERN Large Hadron Collider (LHC) accelerator was designed to study ultra-relativistic heavy-ion collisions. The ALICE Electromagnetic Calorimeter (EMCal) was built to provide measurement of photons, electrons, and jets, and trigger selection of hard-QCD events containing them. The EMCal single-shower L0 trigger, which triggers on large energy deposit within a 4 x 4 tower sliding window, became operational in 2010. The implementation of the real-time FPGA based algorithm optimized to provide a fast L0 decision is presented.

Original languageEnglish
Pages (from-to)261-267
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume693
DOIs
StatePublished - Nov 21 2012
Externally publishedYes

Keywords

  • ALICE
  • Calorimeter
  • EMCal
  • Firmware
  • Trigger

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