Muon identification with the event filter of the ATLAS experiment at CERN LHC
The Large Hadron Collider at CERN offers unprecedented challenges to the design and construction of detectors and trigger/data acquisition systems. For ATLAS, a three level trigger system has been developed to extract interesting physics signatures with a 10/sup 6/ rate reduction. To accomplish this...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2006-06, Vol.53 (3), p.870-875 |
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| container_title | IEEE transactions on nuclear science |
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| creator | Cataldi, G. |
| description | The Large Hadron Collider at CERN offers unprecedented challenges to the design and construction of detectors and trigger/data acquisition systems. For ATLAS, a three level trigger system has been developed to extract interesting physics signatures with a 10/sup 6/ rate reduction. To accomplish this, components of physics analysis traditionally deferred to off-line physics analysis must be embedded within the on-line trigger system. For the Muon trigger, the specific off-line algorithms MOORE (Muon Object Oriented REconstruction) and MuId (Muon Identification) have been adopted so far for the on-line use, imposing an operation in a Bayesian-like environment where only specific hypotheses must be validated. After a short review of the ATLAS trigger, the paper shows the general strategy of the Muon Identification and Selection accessing the full event data, or being seeded from results derived at a previous stage of the trigger chain. |
| doi_str_mv | 10.1109/TNS.2006.873304 |
| format | Article |
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| ispartof | IEEE transactions on nuclear science, 2006-06, Vol.53 (3), p.870-875 |
| issn | 0018-9499 1558-1578 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Algorithms Buffer storage CERN Data acquisition Data mining Design engineering Detectors Event detection event filter Filters Hadrons Large Hadron Collider Mesons Muons Object oriented Object-oriented programming On-line systems particle tracking pattern recognition Physics Strategy Superconducting magnets trigger |
| title | Muon identification with the event filter of the ATLAS experiment at CERN LHC |
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