L0 Trigger for the EMCal Detector of the ALICE Experiment

Journal Article · Sun Jan 01 04:00:00 EST 2012 · Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2012.06.065· OSTI ID:1049910

Kral, Jiri ^[1]; Awes, Terry C ^[2]; Muller, Hans ^[3]; Rak, Jan ^[1]; Schambach, Joachim ^[4]

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1. University of Jyvaskyla, Finland
2. ORNL
3. CERN, Geneva, Switzerland
4. University of Texas, Austin

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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1049910
• Journal Information: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 693; ISSN 0168-9002
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
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CALORIMETERS
CERN
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HADRONS
IMPLEMENTATION
PHOTONS