Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger

The CMS Level-1 trigger architecture underwent a full upgrade in 2016 in order to maintain and improve the trigger performance in the challenging experimental environment of Run II. It uses very high bandwidth processors with complex, programmable algorithms which increase the efficiency of identify...

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Detalles Bibliográficos
Autor principal: Bhowmik, Sandeep
Lenguaje:eng
Publicado: SISSA 2018
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.22323/1.340.0866
http://cds.cern.ch/record/2646386
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author Bhowmik, Sandeep
author_facet Bhowmik, Sandeep
author_sort Bhowmik, Sandeep
collection CERN
description The CMS Level-1 trigger architecture underwent a full upgrade in 2016 in order to maintain and improve the trigger performance in the challenging experimental environment of Run II. It uses very high bandwidth processors with complex, programmable algorithms which increase the efficiency of identifying physics objects while reducing rates. It has successfully delivered very high performance at the high luminosity and associated pile-up condition.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
publisher SISSA
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spelling cern-26463862022-08-10T12:21:39Zdoi:10.22323/1.340.0866http://cds.cern.ch/record/2646386engBhowmik, SandeepTriggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 triggerDetectors and Experimental TechniquesThe CMS Level-1 trigger architecture underwent a full upgrade in 2016 in order to maintain and improve the trigger performance in the challenging experimental environment of Run II. It uses very high bandwidth processors with complex, programmable algorithms which increase the efficiency of identifying physics objects while reducing rates. It has successfully delivered very high performance at the high luminosity and associated pile-up condition.The Compact Muon Solenoid (CMS) experiment implements a sophisticated two-level triggering system composed of the 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 conditions experienced during Run II. In this poster, we present the upgraded CMS calorimeter trigger algorithms. The calorimeter trigger system plays a central role in achieving the ambitious physics program of Run II. The upgraded electronics architecture benefits from an enhanced granularity of the calorimeters to optimally reconstruct the trigger objects. Dedicated pile-up mitigation techniques are implemented for the lepton isolation, the jets and the missing transverse energy to keep the rate under control in the intense running conditions of the LHC. The performance of the new calorimeter trigger will be presented, based on proton-proton collision data collected in Run II. The selection techniques used to trigger efficiently on benchmark analyses will be presented, along with the strategies employed to guarantee efficient triggering for new resonances and other new physics signals.SISSACMS-CR-2018-264oai:cds.cern.ch:26463862018-10-11
spellingShingle Detectors and Experimental Techniques
Bhowmik, Sandeep
Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title_full Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title_fullStr Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title_full_unstemmed Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title_short Triggering on electrons, photons, tau leptons, jets and energy sums with the CMS Level-1 trigger
title_sort triggering on electrons, photons, tau leptons, jets and energy sums with the cms level-1 trigger
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.22323/1.340.0866
http://cds.cern.ch/record/2646386
work_keys_str_mv AT bhowmiksandeep triggeringonelectronsphotonstauleptonsjetsandenergysumswiththecmslevel1trigger

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