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The CMS Level-1 tau lepton and vector boson fusion triggers for the LHC Run II
The CMS experiment implements a sophisticated two-level triggering system composed of Level-1, instrumented by custom-design hardware boards, and a software High Level Trigger. A new Level-1 trigger architecture with improved performance is now being used to maintain high physics efficiency for the...
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Lenguaje: | eng |
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2018
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Acceso en línea: | https://dx.doi.org/10.1016/j.nima.2018.11.008 http://cds.cern.ch/record/2629844 |
Sumario: | The CMS experiment implements a sophisticated two-level triggering system composed of Level-1, instrumented by custom-design hardware boards, and a software High Level Trigger. A new Level-1 trigger architecture with improved performance is now being used to maintain high physics efficiency for the more challenging luminosity conditions experienced during Run II. The upgrades to the calorimeter trigger will be described along with performance measured on Run II collision data. The algorithms for the selection of final states with hadronically decaying tau leptons, both for precision measurements and for searches of new physics beyond the Standard Model, will be described in detail. The implementation of the first dedicated Vector Boson Fusion trigger algorithm will be presented as well, along with its performance on Higgs physics signals. |
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