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The LHCb Trigger and its Performance in 2011
This paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lep...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2012
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1748-0221/8/04/P04022 http://cds.cern.ch/record/1493820 |
| _version_ | 1780926525961404416 |
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| author | Aaij, R Albrecht, J Alessio, F Amato, S Aslanides, E Belyaev, I van Beuzekom, M Bonaccorsi, E Bonnefoy, R Brarda, L Callot, O Cattaneo, M Chanal, H Chebbi, M Cid Vidal, X Clemencic, M Closier, J Coco, V Cogan, J Deschamps, O Dijkstra, H Drancourt, C Dzhelyadin, R Frank, M Gandelman, M Gaspar, C Gligorov, V V Göbel, C Granado Cardoso, L A Guz, Yu Haen, C He, J van Herwijnen, E Hulsbergen, W Jacobsson, R Jost, B Karbach, T M Kerzel, U Koppenburg, P Krocker, G Langenbruch, C Lax, I Le Gac, R Lefèvre, R Lefrançois, J Leroy, O Li Gioi, L Liu, G Machefert, F Machikhiliyan, I V Magne, M Mancinelli, G Marconi, U Martín Sánchez, A Minard, M-N Monteil, S Neufeld, N Niess, V Oggero, S Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pietrzyk, B Puig Navarro, A Raven, G Robbe, P Ruiz, H Schune, M-H Schwemmer, R Serrano, J Shapoval, I Skwarnicki, T Souza De Paula, B Spradlin, P Stahl, S Subbiah, V K T'Jampens, S Teubert, F Thomas, C Vesterinen, M Williams, M Witek, M Zvyagin, A |
| author_facet | Aaij, R Albrecht, J Alessio, F Amato, S Aslanides, E Belyaev, I van Beuzekom, M Bonaccorsi, E Bonnefoy, R Brarda, L Callot, O Cattaneo, M Chanal, H Chebbi, M Cid Vidal, X Clemencic, M Closier, J Coco, V Cogan, J Deschamps, O Dijkstra, H Drancourt, C Dzhelyadin, R Frank, M Gandelman, M Gaspar, C Gligorov, V V Göbel, C Granado Cardoso, L A Guz, Yu Haen, C He, J van Herwijnen, E Hulsbergen, W Jacobsson, R Jost, B Karbach, T M Kerzel, U Koppenburg, P Krocker, G Langenbruch, C Lax, I Le Gac, R Lefèvre, R Lefrançois, J Leroy, O Li Gioi, L Liu, G Machefert, F Machikhiliyan, I V Magne, M Mancinelli, G Marconi, U Martín Sánchez, A Minard, M-N Monteil, S Neufeld, N Niess, V Oggero, S Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pietrzyk, B Puig Navarro, A Raven, G Robbe, P Ruiz, H Schune, M-H Schwemmer, R Serrano, J Shapoval, I Skwarnicki, T Souza De Paula, B Spradlin, P Stahl, S Subbiah, V K T'Jampens, S Teubert, F Thomas, C Vesterinen, M Williams, M Witek, M Zvyagin, A |
| author_sort | Aaij, R |
| collection | CERN |
| description | This paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lepton identification and measurements of the particles’ transverse momenta the trigger selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying. The trigger reduces the roughly 11MHz of bunch-bunch crossings that contain at least one inelastic pp interaction to 3 kHz. This reduction takes place in two stages; the first stage is implemented in hardware and the second stage is a software application that runs on a large computer farm. A data-driven method is used to evaluate the performance of the trigger on several charm and beauty decay modes. |
| id | cern-1493820 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2012 |
| record_format | invenio |
| spelling | cern-14938202023-02-14T03:52:27Zdoi:10.1088/1748-0221/8/04/P04022http://cds.cern.ch/record/1493820engAaij, RAlbrecht, JAlessio, FAmato, SAslanides, EBelyaev, Ivan Beuzekom, MBonaccorsi, EBonnefoy, RBrarda, LCallot, OCattaneo, MChanal, HChebbi, MCid Vidal, XClemencic, MClosier, JCoco, VCogan, JDeschamps, ODijkstra, HDrancourt, CDzhelyadin, RFrank, MGandelman, MGaspar, CGligorov, V VGöbel, CGranado Cardoso, L AGuz, YuHaen, CHe, Jvan Herwijnen, EHulsbergen, WJacobsson, RJost, BKarbach, T MKerzel, UKoppenburg, PKrocker, GLangenbruch, CLax, ILe Gac, RLefèvre, RLefrançois, JLeroy, OLi Gioi, LLiu, GMachefert, FMachikhiliyan, I VMagne, MMancinelli, GMarconi, UMartín Sánchez, AMinard, M-NMonteil, SNeufeld, NNiess, VOggero, SPérez-Calero Yzquierdo, APerret, PPerrin-Terrin, MPietrzyk, BPuig Navarro, ARaven, GRobbe, PRuiz, HSchune, M-HSchwemmer, RSerrano, JShapoval, ISkwarnicki, TSouza De Paula, BSpradlin, PStahl, SSubbiah, V KT'Jampens, STeubert, FThomas, CVesterinen, MWilliams, MWitek, MZvyagin, AThe LHCb Trigger and its Performance in 2011Particle Physics - ExperimentThis paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lepton identification and measurements of the particles’ transverse momenta the trigger selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying. The trigger reduces the roughly 11MHz of bunch-bunch crossings that contain at least one inelastic pp interaction to 3 kHz. This reduction takes place in two stages; the first stage is implemented in hardware and the second stage is a software application that runs on a large computer farm. A data-driven method is used to evaluate the performance of the trigger on several charm and beauty decay modes.This paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lepton identification and measurements of the particles' transverse momenta the trigger selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying. The trigger reduces the roughly 11\,MHz of bunch-bunch crossings that contain at least one inelastic $pp$ interaction to 3\,kHz. This reduction takes place in two stages; the first stage is implemented in hardware and the second stage is a software application that runs on a large computer farm. A data-driven method is used to evaluate the performance of the trigger on several charm and beauty decay modes.arXiv:1211.3055LHCb-DP-2012-004oai:cds.cern.ch:14938202012-11-14 |
| spellingShingle | Particle Physics - Experiment Aaij, R Albrecht, J Alessio, F Amato, S Aslanides, E Belyaev, I van Beuzekom, M Bonaccorsi, E Bonnefoy, R Brarda, L Callot, O Cattaneo, M Chanal, H Chebbi, M Cid Vidal, X Clemencic, M Closier, J Coco, V Cogan, J Deschamps, O Dijkstra, H Drancourt, C Dzhelyadin, R Frank, M Gandelman, M Gaspar, C Gligorov, V V Göbel, C Granado Cardoso, L A Guz, Yu Haen, C He, J van Herwijnen, E Hulsbergen, W Jacobsson, R Jost, B Karbach, T M Kerzel, U Koppenburg, P Krocker, G Langenbruch, C Lax, I Le Gac, R Lefèvre, R Lefrançois, J Leroy, O Li Gioi, L Liu, G Machefert, F Machikhiliyan, I V Magne, M Mancinelli, G Marconi, U Martín Sánchez, A Minard, M-N Monteil, S Neufeld, N Niess, V Oggero, S Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pietrzyk, B Puig Navarro, A Raven, G Robbe, P Ruiz, H Schune, M-H Schwemmer, R Serrano, J Shapoval, I Skwarnicki, T Souza De Paula, B Spradlin, P Stahl, S Subbiah, V K T'Jampens, S Teubert, F Thomas, C Vesterinen, M Williams, M Witek, M Zvyagin, A The LHCb Trigger and its Performance in 2011 |
| title | The LHCb Trigger and its Performance in 2011 |
| title_full | The LHCb Trigger and its Performance in 2011 |
| title_fullStr | The LHCb Trigger and its Performance in 2011 |
| title_full_unstemmed | The LHCb Trigger and its Performance in 2011 |
| title_short | The LHCb Trigger and its Performance in 2011 |
| title_sort | lhcb trigger and its performance in 2011 |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1088/1748-0221/8/04/P04022 http://cds.cern.ch/record/1493820 |
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