Authors
G Volpi, A McCarn, P Chang, J Webster, P Giannetti, A Todri, C Roda, T Mitani, M Villa, Y Sakurai, M Dunford, A Andreazza, F Canelli, T Liu, F Tang, S Valentinetti, N Kimura, M Atkinson, M Kasten, A Favareto, J Tang, C Francesco, F Giannuzzi, R Blair, J Proudfoot, V Liberali, B Penning, M Citterio, A Stabile, J Zhang, A Annovi, C Melachrinos, R Tripiccione, L Tompkins, A Boveia, G Blazey, M Franchini, J Hoff, M Riva, M Piendibene, HL Li, F Lasagni, F Giorgi, A Lanza, Y Cheng, C Meroni, I Sacco, V Bevacqua, B Auerbach, J Anderson, J Olsen, A Zoccoli, M Bogdan, V Vercesi, G Drake, M Beretta, A Castegnaro, V Cavaliere, YK Kim, Y Okumura, M Dell'Orso, J Tuggle, F Sabatini, K Yorita, M Shochet, M Neubauer, A Andreani, L Fabbri, T Iizawa, J Wu, A Kapliy, F Crescioli, C Sbarra, A Negri, D Magalotti
Publication date
2012/6/8
Issue
ATL-DAQ-SLIDE-2012-359
Publisher
ATL-COM-DAQ-2012-126
Description
The existing three level ATLAS trigger system is deployed to reduce the event rate from the bunch crossing rate of 40 MHz to~ 400 Hz for permanent storage at the LHC design luminosity of 10^ 34 cm^-2 s^-1. When the LHC reaches beyond the design luminosity, the load on the Level-2 trigger system will significantly increase due to both the need for more sophisticated algorithms to suppress background and the larger event sizes. The Fast TracKer (FTK) is a custom electronics system that will operate at the full Level-1 accepted rate of 100 KHz and provide high quality tracks at the beginning of processing in the Level-2 trigger, by performing track reconstruction in hardware with massive parallelism of associative memories and FPGAs. The performance in important physics areas including b-tagging, tau-tagging and lepton isolation will be demonstrated with the ATLAS MC simulation at different LHC luminosities. The system design will be overviewed. The latest R& amp; amp; amp; D progress of individual components will be presented and related technologies will be discussed.
Scholar articles
G Volpi, A McCarn, P Chang, J Webster, P Giannetti… - 2012