The ALICE experiment at the LHC has been designed
to cope with the experimental conditions and
observables of a Quark Gluon Plasma reaction. One of the main assets of the ALICE experiment with respect to
the other LHC experiments is the particle identification.
The large Time-Of-Flight (TOF) detector is the
main particle identification detector of the ALICE experiment. The overall time resolution, better that 80 ps, allows the particle identification
over a large momentum range (up to 2.5 GeV/c for pi/K and 4 GeV/c for K/p).
The TOF makes use of the Multi-gap Resistive Plate Chamber (MRPC), a detector
with high efficiency, fast response and intrinsic time resoltion better than 40 ps.
The TOF detector embeds a highly-segmented trigger system that
exploits the fast rise time and the relatively low noise of the MRPC strips, in order to identify several event topologies.
This work aims to provide detailed description of the TOF trigger system. The results achieved in the 2009 cosmic-ray run at CERN are presented to show the performances and readiness of TOF trigger system.
The proposed trigger configuration for the proton-proton and Pb-Pb beams are detailed as well with estimates of the
efficiencies and purity samples.
| Identifer | oai:union.ndltd.org:unibo.it/oai:amsdottorato.cib.unibo.it:2842 |
| Date | 04 May 2010 |
| Creators | Silenzi, Alessandro <1982> |
| Contributors | Basile, Maurizio |
| Publisher | Alma Mater Studiorum - Università di Bologna |
| Source Sets | Università di Bologna |
| Language | English |
| Detected Language | English |
| Type | Doctoral Thesis, PeerReviewed |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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