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

doi:10.1088/1748-0221/11/01/c01051

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arXiv · 1511.05855

Run 2 Upgrades to the CMS Level-1 Calorimeter Trigger

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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.

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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. 2015-11-18. Run 2 Upgrades to the CMS Level-1 Calorimeter Trigger. https://doi.org/10.1088/1748-0221/11/01/c01051

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