Run 2 Upgrades to the CMS Level-1 Calorimeter Trigger

CMS Collaboration

Research output: Contribution to journalArticle (Academic Journal)peer-review

4 Citations (Scopus)


The CMS Level-1 calorimeter trigger is being upgraded in two stages to maintain performance as the LHC increases pile-up and instantaneous luminosity in its second run. In the first stage, improved algorithms including event-by-event pile-up corrections are used. New algorithms for heavy ion running have also been developed. In the second stage, higher granularity inputs and a time-multiplexed approach allow for improved position and energy resolution. Data processing in both stages of the upgrade is performed with new, Xilinx Virtex-7 based AMC cards.
Original languageUndefined/Unknown
JournalJournal of Instrumentation
Publication statusPublished - 18 Nov 2015

Bibliographical note

10 pages, 7 figures


  • physics.ins-det
  • hep-ex

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