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Integration and Commissioning of the Fast TracKer system
The Fast TracKer (FTK) system is a track reconstruction processor able to perform full event tracking synchronously with the ATLAS Level 1 trigger acceptance rate. The high quality tracks produced by the system will be used by the High Level Trigger algorithms to improve the iden- tification of phys...
Autores principales: | , |
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Lenguaje: | eng |
Publicado: |
SISSA
2018
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.22323/1.321.0028 http://cds.cern.ch/record/2636465 |
Sumario: | The Fast TracKer (FTK) system is a track reconstruction processor able to perform full event tracking synchronously with the ATLAS Level 1 trigger acceptance rate. The high quality tracks produced by the system will be used by the High Level Trigger algorithms to improve the iden- tification of physics objects such as b-jets and taus, as well as to help mitigating the effects of pile-up. The combinatorial challenge of global track fitting requires the use of a custom designed track processor. The idea behind the Fast TracKer system is to simulate all possible tracks before an ATLAS data taking run. During the actual data-taking, the hits coming from the detector are compared with the hits expected from the simulated tracks. This comparison or ‘pattern match- ing’ is then followed by a two step linearized track fit. This task is executed by a system of seven custom electronics board types that will process data from the Inner Detector at the 100 kHz rate of the Level 1 trigger. Currently, the FTK system is under installation and commissioning into the ATLAS Data Acquisition System. The status of the system integration is presented and a review of the first data collected by the FTK system is shown. |
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