Run 2 Upgrades to the CMS Level-1 Calorimeter Trigger

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...

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Detalles Bibliográficos
Autores principales: Kreis, B., Berryhill, J., Cavanaugh, R., Mishra, K., Rivera, R., Uplegger, L., Apanasevich, L., Zhang, J., Marrouche, J., Wardle, N., Aggleton, R., Ball, F., Brooke, J., Newbold, D., Paramesvaran, S., Smith, D., Baber, M., Bundock, A., Citron, M., Elwood, A., Hall, G., Iles, G., Laner, C., Penning, B., Rose, A., Tapper, A., Foudas, C., Beaudette, F., Cadamuro, L., Mastrolorenzo, L., Romanteau, T., Sauvan, J.B., Strebler, T., Zabi, A., Barbieri, R., Cali, I.A., Innocenti, G.M., Lee, Y.J., Roland, C., Wyslouch, B., Guilbaud, M., Li, W., Northup, M., Tran, B., Durkin, T., Harder, K., Harper, S., Shepherd-Themistocleous, C., Thea, A., Williams, T., Cepeda, M., Dasu, S., Dodd, L., Forbes, R., Gorski, T., Klabbers, P., Levine, A., Ojalvo, I., Ruggles, T., Smith, N., Smith, W., Svetek, A., Tikalsky, J., Vicente, M.
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/11/01/C01051
http://cds.cern.ch/record/2103853
Descripción
Sumario: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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