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25 April 2024

» arxiv » 1511.5855

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Run 2 Upgrades to the CMS Level-1 Calorimeter Trigger
B. Kreis ; J. Berryhill ; R. Cavanaugh ; K. Mishra ; R. Rivera ; L. Uplegger ; L. Apanasevich ; J. Zhang ; J. Marrouche ; N. Wardle ; R. Aggleton ; F. Ball ; J. Brooke ; D. Newbold ; S. Paramesvaran ; D. Smith ; M. Baber ; A. Bundock ; M. Citron ; A. Elwood ; G. Hall ; G. Iles ; C. Laner ; B. Penning ; A. Rose ; A. Tapper ; C. Foudas ; F. Beaudette ; L. Cadamuro ; L. Mastrolorenzo ; T. Romanteau ; J. B. Sauvan ; T. Strebler ; A. Zabi ; R. Barbieri ; I. A. Cali ; G. M. Innocenti ; Y.-J. Lee ; C. Roland ; B. Wyslouch ; M. Guilbaud ; W. Li ; M. Northup ; B. Tran ; T. Durkin ; K. Harder ; S. Harper ; C. Shepherd-Themistocleous ; A. Thea ; T. Williams ; M. Cepeda ; S. Dasu ; L. Dodd ; R. Forbes ; T. Gorski ; P. Klabbers ; A. Levine ; I. Ojalvo ; T. Ruggles ; N. Smith ; W. Smith ; A. Svetek ; J. Tikalsky ; M. Vicente ;
Date:	18 Nov 2015
Abstract:	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.
Source:	arXiv, 1511.5855
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