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A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer
The ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. For the muon events, the selection is decomposed in a number of broad steps: first, the Muon Spectrometer data are processed to give physics quantities associated to the muon track (standa...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
CERN
2005
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.5170/CERN-2005-002.67 http://cds.cern.ch/record/820771 |
| _version_ | 1780905513622437888 |
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| author | Di Mattia, A Armstrong, S Dos Anjos, A Baines, J T M Bee, C P Biglietti, M Bogaerts, J A C Boisvert, V Bosman, M Caron, B Casado, M P Cataldi, G Cavalli, D Cervetto, M Comune, G Conde-Muíño, P De Santo, A Díaz-Gómez, M Dosil, M Ellis, Nick Emeliyanov, D Epp, B Falciano, S Farilla, A George, S Ghete, V M González, S Grothe, M Kabana, S Khomich, A Kilvington, G Konstantinidis, N P Kootz, A Lowe, A Luminari, L Maeno, T Masik, J Meessen, C Mello, A G Merino, G Moore, R Morettini, P Negri, A Nikitin, N V Nisati, A Padilla, C Panikashvili, N Parodi, F Pasqualucci, E Pérez-Réale, V Pinfold, J L Pinto, P Qian, Z Resconi, S Rosati, S Sánchez, C Santamarina-Rios, C Scannicchio, D A Schiavi, C Segura, E De Seixas, J M Sivoklokov, S Yu Soluk, R A Stefanidis, E Sushkov, S S Sutton, M Tapprogge, Stefan Thomas, E Touchard, F Venda-Pinto, B Vercesi, V Werner, P Wheeler, S Wickens, F J Wiedenmann, W Wielers, M Zobernig, G |
| author_facet | Di Mattia, A Armstrong, S Dos Anjos, A Baines, J T M Bee, C P Biglietti, M Bogaerts, J A C Boisvert, V Bosman, M Caron, B Casado, M P Cataldi, G Cavalli, D Cervetto, M Comune, G Conde-Muíño, P De Santo, A Díaz-Gómez, M Dosil, M Ellis, Nick Emeliyanov, D Epp, B Falciano, S Farilla, A George, S Ghete, V M González, S Grothe, M Kabana, S Khomich, A Kilvington, G Konstantinidis, N P Kootz, A Lowe, A Luminari, L Maeno, T Masik, J Meessen, C Mello, A G Merino, G Moore, R Morettini, P Negri, A Nikitin, N V Nisati, A Padilla, C Panikashvili, N Parodi, F Pasqualucci, E Pérez-Réale, V Pinfold, J L Pinto, P Qian, Z Resconi, S Rosati, S Sánchez, C Santamarina-Rios, C Scannicchio, D A Schiavi, C Segura, E De Seixas, J M Sivoklokov, S Yu Soluk, R A Stefanidis, E Sushkov, S S Sutton, M Tapprogge, Stefan Thomas, E Touchard, F Venda-Pinto, B Vercesi, V Werner, P Wheeler, S Wickens, F J Wiedenmann, W Wielers, M Zobernig, G |
| author_sort | Di Mattia, A |
| collection | CERN |
| description | The ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. For the muon events, the selection is decomposed in a number of broad steps: first, the Muon Spectrometer data are processed to give physics quantities associated to the muon track (standalone feature extraction) then, other detector data are used to refine the extracted features. The “µFast” algorithm performs the standalone feature extraction, providing a first reduction of the muon event rate from Level-1. It confirms muon track candidates with a precise measurement of the muon momentum. The algorithm is designed to be both conceptually simple and fast so as to be readily implemented in the demanding online environment in which the Level-2 selection code will run. Never-the-less its physics performance approaches, in some cases, that of the offline reconstruction algorithms. This paper describes the implemented algorithm together with the software techniques employed to increase its timing performances. |
| id | cern-820771 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2005 |
| publisher | CERN |
| record_format | invenio |
| spelling | cern-8207712019-09-30T06:29:59Zdoi:10.5170/CERN-2005-002.67http://cds.cern.ch/record/820771engDi Mattia, AArmstrong, SDos Anjos, ABaines, J T MBee, C PBiglietti, MBogaerts, J A CBoisvert, VBosman, MCaron, BCasado, M PCataldi, GCavalli, DCervetto, MComune, GConde-Muíño, PDe Santo, ADíaz-Gómez, MDosil, MEllis, NickEmeliyanov, DEpp, BFalciano, SFarilla, AGeorge, SGhete, V MGonzález, SGrothe, MKabana, SKhomich, AKilvington, GKonstantinidis, N PKootz, ALowe, ALuminari, LMaeno, TMasik, JMeessen, CMello, A GMerino, GMoore, RMorettini, PNegri, ANikitin, N VNisati, APadilla, CPanikashvili, NParodi, FPasqualucci, EPérez-Réale, VPinfold, J LPinto, PQian, ZResconi, SRosati, SSánchez, CSantamarina-Rios, CScannicchio, D ASchiavi, CSegura, EDe Seixas, J MSivoklokov, S YuSoluk, R AStefanidis, ESushkov, S SSutton, MTapprogge, StefanThomas, ETouchard, FVenda-Pinto, BVercesi, VWerner, PWheeler, SWickens, F JWiedenmann, WWielers, MZobernig, GA Level-2 trigger algorithm for the identification of muons in the ATLAS Muon SpectrometerDetectors and Experimental TechniquesThe ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. For the muon events, the selection is decomposed in a number of broad steps: first, the Muon Spectrometer data are processed to give physics quantities associated to the muon track (standalone feature extraction) then, other detector data are used to refine the extracted features. The “µFast” algorithm performs the standalone feature extraction, providing a first reduction of the muon event rate from Level-1. It confirms muon track candidates with a precise measurement of the muon momentum. The algorithm is designed to be both conceptually simple and fast so as to be readily implemented in the demanding online environment in which the Level-2 selection code will run. Never-the-less its physics performance approaches, in some cases, that of the offline reconstruction algorithms. This paper describes the implemented algorithm together with the software techniques employed to increase its timing performances.CERNATL-DAQ-CONF-2005-005ATL-COM-DAQ-2005-003CERN-ATL-DAQ-CONF-2005-005oai:cds.cern.ch:8207712005 |
| spellingShingle | Detectors and Experimental Techniques Di Mattia, A Armstrong, S Dos Anjos, A Baines, J T M Bee, C P Biglietti, M Bogaerts, J A C Boisvert, V Bosman, M Caron, B Casado, M P Cataldi, G Cavalli, D Cervetto, M Comune, G Conde-Muíño, P De Santo, A Díaz-Gómez, M Dosil, M Ellis, Nick Emeliyanov, D Epp, B Falciano, S Farilla, A George, S Ghete, V M González, S Grothe, M Kabana, S Khomich, A Kilvington, G Konstantinidis, N P Kootz, A Lowe, A Luminari, L Maeno, T Masik, J Meessen, C Mello, A G Merino, G Moore, R Morettini, P Negri, A Nikitin, N V Nisati, A Padilla, C Panikashvili, N Parodi, F Pasqualucci, E Pérez-Réale, V Pinfold, J L Pinto, P Qian, Z Resconi, S Rosati, S Sánchez, C Santamarina-Rios, C Scannicchio, D A Schiavi, C Segura, E De Seixas, J M Sivoklokov, S Yu Soluk, R A Stefanidis, E Sushkov, S S Sutton, M Tapprogge, Stefan Thomas, E Touchard, F Venda-Pinto, B Vercesi, V Werner, P Wheeler, S Wickens, F J Wiedenmann, W Wielers, M Zobernig, G A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title | A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title_full | A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title_fullStr | A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title_full_unstemmed | A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title_short | A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer |
| title_sort | level-2 trigger algorithm for the identification of muons in the atlas muon spectrometer |
| topic | Detectors and Experimental Techniques |
| url | https://dx.doi.org/10.5170/CERN-2005-002.67 http://cds.cern.ch/record/820771 |
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level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT nisatia level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT padillac level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT panikashvilin level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT parodif level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT pasqualuccie level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT perezrealev level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT pinfoldjl level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT pintop level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT qianz level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT resconis level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT rosatis level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT sanchezc level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT santamarinariosc level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT scannicchioda level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT schiavic level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT segurae level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT deseixasjm level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT sivoklokovsyu level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT solukra level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT stefanidise level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT sushkovss level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT suttonm level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT tapproggestefan level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT thomase level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT touchardf level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT vendapintob level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT vercesiv level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT wernerp level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT wheelers level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT wickensfj level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT wiedenmannw level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT wielersm level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer AT zobernigg level2triggeralgorithmfortheidentificationofmuonsintheatlasmuonspectrometer |