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Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector
New trigger inputs for the ALICE Central Trigger Processor (CTP) are proposed. They are based on the use of Fast Multiplicity (FM) output signals generated by the ALICE Silicon Pixel Detector (SPD). These can be used for a multiplicity based centrality trigger and for a fast on-line computation of t...
| Autores principales: | , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/606345 |
| _version_ | 1780900116841889792 |
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| author | Antinori, Federico Caliandro, R Fini, R Formenti, F Lenti, V Meddi, F Safarík, K Stefanini, G Virgili, T |
| author_facet | Antinori, Federico Caliandro, R Fini, R Formenti, F Lenti, V Meddi, F Safarík, K Stefanini, G Virgili, T |
| author_sort | Antinori, Federico |
| collection | CERN |
| description | New trigger inputs for the ALICE Central Trigger Processor (CTP) are proposed. They are based on the use of Fast Multiplicity (FM) output signals generated by the ALICE Silicon Pixel Detector (SPD). These can be used for a multiplicity based centrality trigger and for a fast on-line computation of the primary vertex. A simple algorithm for primary vertex location at the trigger level is proposed. The precision that can be achieved with this method on centrality selection and primary vertex location, is discussed for interactions with different pseudo-rapidity density level. The feasibility of background rejection is also considered. |
| id | cern-606345 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-6063452019-09-30T06:29:59Zhttp://cds.cern.ch/record/606345engAntinori, FedericoCaliandro, RFini, RFormenti, FLenti, VMeddi, FSafarík, KStefanini, GVirgili, TStudy of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel DetectorDetectors and Experimental TechniquesNew trigger inputs for the ALICE Central Trigger Processor (CTP) are proposed. They are based on the use of Fast Multiplicity (FM) output signals generated by the ALICE Silicon Pixel Detector (SPD). These can be used for a multiplicity based centrality trigger and for a fast on-line computation of the primary vertex. A simple algorithm for primary vertex location at the trigger level is proposed. The precision that can be achieved with this method on centrality selection and primary vertex location, is discussed for interactions with different pseudo-rapidity density level. The feasibility of background rejection is also considered.CERN-ALI-2003-007CERN-ALICE-ITS-2003-007oai:cds.cern.ch:6063452002-01-15 |
| spellingShingle | Detectors and Experimental Techniques Antinori, Federico Caliandro, R Fini, R Formenti, F Lenti, V Meddi, F Safarík, K Stefanini, G Virgili, T Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title | Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title_full | Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title_fullStr | Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title_full_unstemmed | Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title_short | Study of a New Trigger on Multiplicity and Primary Interaction Vertex using the ALICE Silicon Pixel Detector |
| title_sort | study of a new trigger on multiplicity and primary interaction vertex using the alice silicon pixel detector |
| topic | Detectors and Experimental Techniques |
| url | http://cds.cern.ch/record/606345 |
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